From: Xiubin Zhang <zhangxiub...@huawei.com>

Modfiy pix_clk and dsi lanes to improve HDMI compatibility for hikey970.

Signed-off-by: Xiubin Zhang <zhangxiub...@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+hua...@kernel.org>
---
 drivers/staging/hikey9xx/gpu/dw_drm_dsi.c     |  53 ++-----
 drivers/staging/hikey9xx/gpu/hdmi/adv7535.c   |   9 +-
 .../hikey9xx/gpu/kirin_drm_dpe_utils.c        | 133 ++----------------
 .../hikey9xx/gpu/kirin_drm_dpe_utils.h        |   2 +-
 drivers/staging/hikey9xx/gpu/kirin_drm_drv.c  |   7 -
 drivers/staging/hikey9xx/gpu/kirin_drm_dss.c  |  17 +--
 .../hikey9xx/gpu/kirin_drm_overlay_utils.c    |   3 -
 drivers/staging/hikey9xx/gpu/kirin_fb_panel.h |   5 -
 drivers/staging/hikey9xx/gpu/kirin_fbdev.c    |  10 +-
 9 files changed, 41 insertions(+), 198 deletions(-)

diff --git a/drivers/staging/hikey9xx/gpu/dw_drm_dsi.c 
b/drivers/staging/hikey9xx/gpu/dw_drm_dsi.c
index e69f4a9bca58..e87363ab7373 100644
--- a/drivers/staging/hikey9xx/gpu/dw_drm_dsi.c
+++ b/drivers/staging/hikey9xx/gpu/dw_drm_dsi.c
@@ -312,6 +312,7 @@ void dsi_set_output_client(struct drm_device *dev)
 }
 EXPORT_SYMBOL(dsi_set_output_client);
 
+#if defined (CONFIG_HISI_FB_970)
 static void get_dsi_dphy_ctrl(struct dw_dsi *dsi,
                                                        struct mipi_phy_params 
*phy_ctrl)
 {
@@ -357,10 +358,8 @@ static void get_dsi_dphy_ctrl(struct dw_dsi *dsi,
        bpp = mipi_dsi_pixel_format_to_bpp(dsi->client[id].format);
        if (bpp < 0)
                return;
-       if (mode->clock > 80000)
-           dsi->client[id].lanes = 4;
-       else
-           dsi->client[id].lanes = 3;
+
+       dsi->client[id].lanes = 4;
 
        if (dsi->client[id].phy_clock)
                dphy_req_kHz = dsi->client[id].phy_clock;
@@ -387,33 +386,7 @@ static void get_dsi_dphy_ctrl(struct dw_dsi *dsi,
        m_n_int = lane_clock * vco_div * 1000000UL / DEFAULT_MIPI_CLK_RATE;
        m_n_fract = ((lane_clock * vco_div * 1000000UL * 1000UL / 
DEFAULT_MIPI_CLK_RATE) % 1000) * 10 / 1000;
 
-       if (m_n_int % 2 == 0) {
-               if (m_n_fract * 6 >= 50) {
-                       n_pll = 2;
-                       m_pll = (m_n_int + 1) * n_pll;
-               } else if (m_n_fract * 6 >= 30) {
-                       n_pll = 3;
-                       m_pll = m_n_int * n_pll + 2;
-               } else {
-                       n_pll = 1;
-                       m_pll = m_n_int * n_pll;
-               }
-       } else {
-               if (m_n_fract * 6 >= 50) {
-                       n_pll = 1;
-                       m_pll = (m_n_int + 1) * n_pll;
-               } else if (m_n_fract * 6 >= 30) {
-                       n_pll = 1;
-                       m_pll = (m_n_int + 1) * n_pll;
-               } else if (m_n_fract * 6 >= 10) {
-                       n_pll = 3;
-                       m_pll = m_n_int * n_pll + 1;
-               } else {
-                       n_pll = 2;
-                       m_pll = m_n_int * n_pll;
-               }
-       }
-       //n_pll = 2;
+       n_pll = 2;
 
        m_pll = (u32)(lane_clock * vco_div * n_pll * 1000000UL / 
DEFAULT_MIPI_CLK_RATE);
 
@@ -568,7 +541,7 @@ static void get_dsi_dphy_ctrl(struct dw_dsi *dsi,
                phy_ctrl->data_lane_hs2lp_time,
                phy_ctrl->phy_stop_wait_time);
 }
-
+#else
 static void get_dsi_phy_ctrl(struct dw_dsi *dsi,
                                                        struct mipi_phy_params 
*phy_ctrl)
 {
@@ -887,7 +860,7 @@ static void get_dsi_phy_ctrl(struct dw_dsi *dsi,
                phy_ctrl->data_t_hs_trial,
                phy_ctrl->data_t_ta_go,
                phy_ctrl->data_t_ta_get);
-       DRM_INFO("clk_lane_lp2hs_time=%u\n"
+       DRM_DEBUG("clk_lane_lp2hs_time=%u\n"
                "clk_lane_hs2lp_time=%u\n"
                "data_lane_lp2hs_time=%u\n"
                "data_lane_hs2lp_time=%u\n"
@@ -898,6 +871,7 @@ static void get_dsi_phy_ctrl(struct dw_dsi *dsi,
                phy_ctrl->data_lane_hs2lp_time,
                phy_ctrl->phy_stop_wait_time);
 }
+#endif
 
 static void dw_dsi_set_mode(struct dw_dsi *dsi, enum dsi_work_mode mode)
 {
@@ -962,13 +936,11 @@ static void mipi_config_dphy_spec1v2_parameter(struct 
dw_dsi *dsi, char __iomem
 
        lanes =  dsi->client[dsi->cur_client].lanes - 1;
 
-#if defined (CONFIG_HISI_FB_970)
-       for (i = 0; i <= lanes; i++) {
+       for (i = 0; i <= (lanes+1); i++) {
                //Lane Transmission Property
                addr = MIPIDSI_PHY_TST_LANE_TRANSMISSION_PROPERTY + (i << 5);
                dsi_phy_tst_set(mipi_dsi_base, addr, 0x43);
        }
-#endif
 
        //pre_delay of clock lane request setting
        dsi_phy_tst_set(mipi_dsi_base, MIPIDSI_PHY_TST_CLK_PRE_DELAY, 
DSS_REDUCE(dsi->phy.clk_pre_delay));
@@ -988,7 +960,7 @@ static void mipi_config_dphy_spec1v2_parameter(struct 
dw_dsi *dsi, char __iomem
        //clock lane timing ctrl - t_hs_trial
        dsi_phy_tst_set(mipi_dsi_base, MIPIDSI_PHY_TST_CLK_TRAIL, 
DSS_REDUCE(dsi->phy.clk_t_hs_trial));
 
-       for (i = 0; i <= (lanes + 1); i++) {//lint !e850
+       for (i = 0; i <= (lanes + 1); i++) {
                if (i == 2) {
                        i++;  //addr: lane0:0x60; lane1:0x80; lane2:0xC0; 
lane3:0xE0
                }
@@ -1039,7 +1011,6 @@ static void dsi_mipi_init(struct dw_dsi *dsi, char 
__iomem *mipi_dsi_base)
        u32 hsa_time = 0;
        u32 hbp_time = 0;
        u64 pixel_clk = 0;
-       u32 i = 0;
        u32 id = 0;
        unsigned long dw_jiffies = 0;
        u32 tmp = 0;
@@ -1161,7 +1132,7 @@ static void dsi_mipi_init(struct dw_dsi *dsi, char 
__iomem *mipi_dsi_base)
        /* clock lane timing ctrl - t_hs_trial*/
        dsi_phy_tst_set(mipi_dsi_base, 0x25, dsi->phy.clk_t_hs_trial);
 
-       for (i = 0; i <= lanes; i++) {
+       for (int i = 0; i <= lanes; i++) {
                /* data lane pre_delay*/
                tmp = 0x30 + (i << 4);
                dsi_phy_tst_set(mipi_dsi_base, tmp, 
DSS_REDUCE(dsi->phy.data_pre_delay));
@@ -1391,8 +1362,9 @@ static int mipi_dsi_on_sub1(struct dw_dsi *dsi, char 
__iomem *mipi_dsi_base)
 static int mipi_dsi_on_sub2(struct dw_dsi *dsi, char __iomem *mipi_dsi_base)
 {
        WARN_ON(!mipi_dsi_base);
-       u64 pctrl_dphytx_stopcnt = 0;
+       u64 pctrl_dphytx_stopcnt;
 
+       pctrl_dphytx_stopcnt = 0;
        /* switch to video mode */
        set_reg(mipi_dsi_base + MIPIDSI_MODE_CFG_OFFSET, 0x0, 1, 0);
 
@@ -1938,7 +1910,6 @@ static int dsi_parse_dt(struct platform_device *pdev, 
struct dw_dsi *dsi)
                DRM_ERROR ("failed to get dsi base resource.\n");
                return -ENXIO;
        }
-       DRM_INFO("dsi base =0x%x.\n", ctx->base);
 
        ctx->peri_crg_base = of_iomap(np, 1);
        if (!(ctx->peri_crg_base)) {
diff --git a/drivers/staging/hikey9xx/gpu/hdmi/adv7535.c 
b/drivers/staging/hikey9xx/gpu/hdmi/adv7535.c
index 3dd6059ea603..0343b2cd4c45 100644
--- a/drivers/staging/hikey9xx/gpu/hdmi/adv7535.c
+++ b/drivers/staging/hikey9xx/gpu/hdmi/adv7535.c
@@ -380,7 +380,6 @@ static void adv7511_set_link_config(struct adv7511 *adv7511,
 
 static void adv7511_dsi_config_tgen(struct adv7511 *adv7511)
 {
-       struct mipi_dsi_device *dsi = adv7511->dsi;
        struct drm_display_mode *mode = &adv7511->curr_mode;
        u8 clock_div_by_lanes[] = { 6, 4, 3 }; /* 2, 3, 4 lanes */
        unsigned int hsw, hfp, hbp, vsw, vfp, vbp;
@@ -402,10 +401,6 @@ static void adv7511_dsi_config_tgen(struct adv7511 
*adv7511)
                        clock_div_by_lanes[adv7511->num_dsi_lanes - 2] << 3);
 #endif
 
-       /* set pixel clock divider mode */
-       /*regmap_write(adv7511->regmap_cec, 0x16,
-                       clock_div_by_lanes[dsi->lanes - 2] << 3);*/
-
        /* horizontal porch params */
        regmap_write(adv7511->regmap_cec, 0x28, mode->htotal >> 4);
        regmap_write(adv7511->regmap_cec, 0x29, (mode->htotal << 4) & 0xff);
@@ -944,10 +939,14 @@ static void adv7511_mode_set(struct adv7511 *adv7511,
                struct mipi_dsi_device *dsi = adv7511->dsi;
                int lanes, ret;
 
+#if defined(CONFIG_HISI_FB_970)
+               lanes = 4;
+#else
                if (adj_mode->clock > 80000)
                        lanes = 4;
                else
                        lanes = 3;
+#endif
 
                if (lanes != dsi->lanes) {
                        mipi_dsi_detach(dsi);
diff --git a/drivers/staging/hikey9xx/gpu/kirin_drm_dpe_utils.c 
b/drivers/staging/hikey9xx/gpu/kirin_drm_dpe_utils.c
index 470e08ed646b..d891ee17f48d 100644
--- a/drivers/staging/hikey9xx/gpu/kirin_drm_dpe_utils.c
+++ b/drivers/staging/hikey9xx/gpu/kirin_drm_dpe_utils.c
@@ -19,8 +19,6 @@ int g_debug_set_reg_val = 0;
 
 DEFINE_SEMAPHORE(hisi_fb_dss_regulator_sem);
 
-static int dss_regulator_refcount;
-
 extern u32 g_dss_module_ovl_base[DSS_MCTL_IDX_MAX][MODULE_OVL_MAX];
 
 mipi_ifbc_division_t g_mipi_ifbc_division[MIPI_DPHY_NUM][IFBC_TYPE_MAX] = {
@@ -119,28 +117,6 @@ uint32_t set_bits32(uint32_t old_val, uint32_t val, 
uint8_t bw, uint8_t bs)
        return (tmp | ((val & mask) << bs));
 }
 
-struct dss_clk_rate *get_dss_clk_rate(struct dss_hw_ctx *ctx)
-{
-       struct dss_clk_rate *pdss_clk_rate = NULL;
-       uint64_t default_dss_pri_clk_rate;
-
-       if (ctx == NULL) {
-               DRM_ERROR("ctx is null.\n");
-               return pdss_clk_rate;
-       }
-
-       pdss_clk_rate = &(ctx->dss_clk);
-       default_dss_pri_clk_rate = DEFAULT_DSS_CORE_CLK_RATE_L1;
-
-       pdss_clk_rate->dss_pri_clk_rate = default_dss_pri_clk_rate;
-       pdss_clk_rate->dss_mmbuf_rate = DEFAULT_DSS_MMBUF_CLK_RATE_L1;
-       pdss_clk_rate->dss_pclk_dss_rate = DEFAULT_PCLK_DSS_RATE;
-       pdss_clk_rate->dss_pclk_pctrl_rate = DEFAULT_PCLK_PCTRL_RATE;
-
-
-       return pdss_clk_rate;
-}
-
 static int mipi_ifbc_get_rect(struct dss_rect *rect)
 {
        u32 ifbc_type;
@@ -399,9 +375,11 @@ void init_dbuf(struct dss_crtc *acrtc)
                "hsw=%d\n"
                "hbp=%d\n"
                "hfp=%d\n"
+               "htotal=%d\n"
                "vfp = %d\n"
                "vbp = %d\n"
                "vsw = %d\n"
+               "vtotal=%d\n"
                "mode->hdisplay=%d\n"
                "mode->vdisplay=%d\n",
                dfs_time,
@@ -409,9 +387,11 @@ void init_dbuf(struct dss_crtc *acrtc)
                hsw,
                hbp,
                hfp,
+               mode->htotal,
                vfp,
                vbp,
                vsw,
+               mode->vtotal,
                mode->hdisplay,
                mode->vdisplay);
 
@@ -758,72 +738,13 @@ void dss_inner_clk_pdp_enable(struct dss_hw_ctx *ctx)
        outp32(dss_base + DSS_DPP_DITHER_OFFSET + DITHER_MEM_CTRL, 0x00000008);
 }
 
-static void dss_normal_set_reg(char __iomem *dss_base)
-{
-       if (NULL == dss_base) {
-               DRM_ERROR("dss_base is null.\n");
-               return;
-       }
-       //core/axi/mmbuf
-       outp32(dss_base + DSS_CMDLIST_OFFSET + CMD_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_RCH_VG0_SCL_OFFSET + SCF_COEF_MEM_CTRL, 
0x00000088);
-       outp32(dss_base + DSS_RCH_VG0_SCL_OFFSET + SCF_LB_MEM_CTRL, 0x00000008);
-
-       outp32(dss_base + DSS_RCH_VG0_ARSR_OFFSET + ARSR2P_LB_MEM_CTRL, 
0x00000008);
-
-       outp32(dss_base + DSS_RCH_VG0_DMA_OFFSET + VPP_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_RCH_VG0_DMA_OFFSET + DMA_BUF_MEM_CTRL, 
0x00000008);
-       outp32(dss_base + DSS_RCH_VG0_DMA_OFFSET + AFBCD_MEM_CTRL, 0x00008888);
-
-       outp32(dss_base + DSS_RCH_VG1_SCL_OFFSET + SCF_COEF_MEM_CTRL, 
0x00000088);
-       outp32(dss_base + DSS_RCH_VG1_SCL_OFFSET + SCF_LB_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_RCH_VG1_DMA_OFFSET + DMA_BUF_MEM_CTRL, 
0x00000008);
-       outp32(dss_base + DSS_RCH_VG1_DMA_OFFSET + AFBCD_MEM_CTRL, 0x00008888);
-
-       outp32(dss_base + DSS_RCH_VG0_DMA_OFFSET + HFBCD_MEM_CTRL, 0x88888888);
-       outp32(dss_base + DSS_RCH_VG0_DMA_OFFSET + HFBCD_MEM_CTRL_1, 
0x00000888);
-       outp32(dss_base + DSS_RCH_VG1_DMA_OFFSET + HFBCD_MEM_CTRL, 0x88888888);
-       outp32(dss_base + DSS_RCH_VG1_DMA_OFFSET + HFBCD_MEM_CTRL_1, 
0x00000888);
-
-       outp32(dss_base + DSS_RCH_VG2_DMA_OFFSET + DMA_BUF_MEM_CTRL, 
0x00000008);
-
-       outp32(dss_base + DSS_RCH_G0_SCL_OFFSET + SCF_COEF_MEM_CTRL, 
0x00000088);
-       outp32(dss_base + DSS_RCH_G0_SCL_OFFSET + SCF_LB_MEM_CTRL, 0x0000008);
-       outp32(dss_base + DSS_RCH_G0_DMA_OFFSET + DMA_BUF_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_RCH_G0_DMA_OFFSET + AFBCD_MEM_CTRL, 0x00008888);
-
-       outp32(dss_base + DSS_RCH_G1_SCL_OFFSET + SCF_COEF_MEM_CTRL, 
0x00000088);
-       outp32(dss_base + DSS_RCH_G1_SCL_OFFSET + SCF_LB_MEM_CTRL, 0x0000008);
-       outp32(dss_base + DSS_RCH_G1_DMA_OFFSET + DMA_BUF_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_RCH_G1_DMA_OFFSET + AFBCD_MEM_CTRL, 0x00008888);
-
-       outp32(dss_base + DSS_RCH_D0_DMA_OFFSET + DMA_BUF_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_RCH_D0_DMA_OFFSET + AFBCD_MEM_CTRL, 0x00008888);
-       outp32(dss_base + DSS_RCH_D1_DMA_OFFSET + DMA_BUF_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_RCH_D2_DMA_OFFSET + DMA_BUF_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_RCH_D3_DMA_OFFSET + DMA_BUF_MEM_CTRL, 0x00000008);
-
-       outp32(dss_base + DSS_WCH0_DMA_OFFSET + DMA_BUF_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_WCH0_DMA_OFFSET + AFBCE_MEM_CTRL, 0x00000888);
-       outp32(dss_base + DSS_WCH0_DMA_OFFSET + ROT_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_WCH1_DMA_OFFSET + DMA_BUF_MEM_CTRL, 0x00000008);
-       outp32(dss_base + DSS_WCH1_DMA_OFFSET + AFBCE_MEM_CTRL, 0x88888888);
-       outp32(dss_base + DSS_WCH1_DMA_OFFSET + AFBCE_MEM_CTRL_1, 0x00000088);
-       outp32(dss_base + DSS_WCH1_DMA_OFFSET + ROT_MEM_CTRL, 0x00000008);
-
-       outp32(dss_base + DSS_WCH1_DMA_OFFSET + WCH_SCF_COEF_MEM_CTRL, 
0x00000088);
-       outp32(dss_base + DSS_WCH1_DMA_OFFSET + WCH_SCF_LB_MEM_CTRL, 
0x00000088);
-       outp32(dss_base + GLB_DSS_MEM_CTRL, 0x02605550);
-
-}
-
 void dss_inner_clk_common_enable(struct dss_hw_ctx *ctx)
 {
        char __iomem *dss_base;
 
        if (NULL == ctx) {
                DRM_ERROR("NULL Pointer!\n");
-               return -EINVAL;
+               return ;
        }
 
        dss_base = ctx->base;
@@ -923,23 +844,6 @@ int dpe_irq_disable(struct dss_crtc *acrtc)
        return 0;
 }
 
-void mds_regulator_enable(struct dss_hw_ctx *ctx)
-{
-       int ret = 0;
-
-       if (NULL == ctx) {
-               DRM_ERROR("NULL ptr.\n");
-               return -EINVAL;
-       }
-
-       ret = regulator_bulk_enable(1, ctx->media_subsys_regulator);
-       if (ret) {
-               DRM_ERROR(" media subsys regulator_enable failed, error=%d!\n", 
ret);
-       }
-
-       return ret;
-}
-
 int dpe_common_clk_enable(struct dss_hw_ctx *ctx)
 {
        int ret = 0;
@@ -1073,7 +977,6 @@ int dpe_inner_clk_enable(struct dss_hw_ctx *ctx)
 
 int dpe_inner_clk_disable(struct dss_hw_ctx *ctx)
 {
-       int ret = 0;
        struct clk *clk_tmp = NULL;
 
        if (ctx == NULL) {
@@ -1151,9 +1054,7 @@ int dpe_regulator_disable(struct dss_hw_ctx *ctx)
 
 int dpe_set_clk_rate(struct dss_hw_ctx *ctx)
 {
-       struct dss_clk_rate *pdss_clk_rate = NULL;
-       uint64_t dss_pri_clk_rate;
-       uint64_t dss_mmbuf_rate;
+       uint64_t clk_rate;
        int ret = 0;
 
        if (NULL == ctx) {
@@ -1161,21 +1062,14 @@ int dpe_set_clk_rate(struct dss_hw_ctx *ctx)
                return -EINVAL;
        }
 
-#if 0
-       pdss_clk_rate = get_dss_clk_rate(ctx);
-       if (NULL == pdss_clk_rate) {
-               DRM_ERROR("NULL Pointer!\n");
-               return -EINVAL;
-       }
-#endif
+       clk_rate = DEFAULT_DSS_CORE_CLK_RATE_L1;
        ret = clk_set_rate(ctx->dss_pri_clk, DEFAULT_DSS_CORE_CLK_RATE_L1);
        if (ret < 0) {
-               DRM_ERROR("dss_pri_clk clk_set_rate(%llu) failed, error=%d!\n",
-                       dss_pri_clk_rate, ret);
+               DRM_ERROR("dss_pri_clk clk_set_rate failed, error=%d!\n", ret);
                return -EINVAL;
        }
        DRM_INFO("dss_pri_clk:[%llu]->[%llu].\n",
-               dss_pri_clk_rate, (uint64_t)clk_get_rate(ctx->dss_pri_clk));
+               clk_rate, (uint64_t)clk_get_rate(ctx->dss_pri_clk));
 
 #if 0 /* it will be set on dss_ldi_set_mode func */
        ret = clk_set_rate(ctx->dss_pxl0_clk, pinfo->pxl_clk_rate);
@@ -1191,24 +1085,21 @@ int dpe_set_clk_rate(struct dss_hw_ctx *ctx)
                        pinfo->pxl_clk_rate, 
(uint64_t)clk_get_rate(ctx->dss_pxl0_clk));
 #endif
 
+       clk_rate = DEFAULT_DSS_MMBUF_CLK_RATE_L1;
        ret = clk_set_rate(ctx->dss_mmbuf_clk, DEFAULT_DSS_MMBUF_CLK_RATE_L1);
        if (ret < 0) {
-               DRM_ERROR("dss_mmbuf clk_set_rate(%llu) failed, error=%d!\n",
-                       dss_mmbuf_rate, ret);
+               DRM_ERROR("dss_mmbuf clk_set_rate failed, error=%d!\n", ret);
                return -EINVAL;
        }
 
        DRM_INFO("dss_mmbuf_clk:[%llu]->[%llu].\n",
-               dss_mmbuf_rate, (uint64_t)clk_get_rate(ctx->dss_mmbuf_clk));
+               clk_rate, (uint64_t)clk_get_rate(ctx->dss_mmbuf_clk));
 
        return ret;
 }
 
 int dpe_set_clk_rate_on_pll0(struct dss_hw_ctx *ctx)
 {
-       struct dss_clk_rate *pdss_clk_rate = NULL;
-       uint64_t dss_pri_clk_rate;
-       uint64_t dss_mmbuf_rate;
        int ret;
        uint64_t clk_rate;
 
diff --git a/drivers/staging/hikey9xx/gpu/kirin_drm_dpe_utils.h 
b/drivers/staging/hikey9xx/gpu/kirin_drm_dpe_utils.h
index d62ea734319b..f27e01cb43f8 100644
--- a/drivers/staging/hikey9xx/gpu/kirin_drm_dpe_utils.h
+++ b/drivers/staging/hikey9xx/gpu/kirin_drm_dpe_utils.h
@@ -57,7 +57,7 @@ int dpe_irq_disable(struct dss_crtc *acrtc);
 
 int dpe_init(struct dss_crtc *acrtc);
 int dpe_deinit(struct dss_crtc *acrtc);
-void dpe_check_itf_status(acrtc);
+void dpe_check_itf_status(struct dss_crtc *acrtc);
 int dpe_set_clk_rate_on_pll0(struct dss_hw_ctx *ctx);
 
 void hisifb_dss_on(struct dss_hw_ctx *ctx);
diff --git a/drivers/staging/hikey9xx/gpu/kirin_drm_drv.c 
b/drivers/staging/hikey9xx/gpu/kirin_drm_drv.c
index a92594553b80..958aafa1a09c 100644
--- a/drivers/staging/hikey9xx/gpu/kirin_drm_drv.c
+++ b/drivers/staging/hikey9xx/gpu/kirin_drm_drv.c
@@ -374,8 +374,6 @@ static int kirin_drm_platform_remove(struct platform_device 
*pdev)
 
 static int kirin_drm_platform_suspend(struct platform_device *pdev, 
pm_message_t state)
 {
-       struct device *dev = &pdev->dev;
-
        DRM_INFO("+. pdev->name is %s, m_message is %d \n", pdev->name, 
state.event);
        if (!dc_ops) {
                DRM_ERROR("dc_ops is NULL\n");
@@ -383,22 +381,17 @@ static int kirin_drm_platform_suspend(struct 
platform_device *pdev, pm_message_t
        }
        dc_ops->suspend(pdev, state);
 
-       DRM_INFO("-. \n");
        return 0;
 }
 
 static int kirin_drm_platform_resume(struct platform_device *pdev)
 {
-       struct device *dev = &pdev->dev;
-
-       DRM_INFO("+. pdev->name is %s \n", pdev->name);
        if (!dc_ops) {
                DRM_ERROR("dc_ops is NULL\n");
                return -EINVAL;
        }
        dc_ops->resume(pdev);
 
-       DRM_INFO("-. \n");
        return 0;
 }
 
diff --git a/drivers/staging/hikey9xx/gpu/kirin_drm_dss.c 
b/drivers/staging/hikey9xx/gpu/kirin_drm_dss.c
index b5ac4d7ae829..b13efd9b9735 100644
--- a/drivers/staging/hikey9xx/gpu/kirin_drm_dss.c
+++ b/drivers/staging/hikey9xx/gpu/kirin_drm_dss.c
@@ -265,7 +265,7 @@ static void dss_ldi_set_mode(struct dss_crtc *acrtc)
                if (mode->clock == 148500)
                        clk_Hz = 144000 * 1000UL;
                else if (mode->clock == 83496)
-                       clk_Hz = 80000 * 1000UL;
+                       clk_Hz = 84000 * 1000UL;
                else if (mode->clock == 74440)
                        clk_Hz = 72000 * 1000UL;
                else if (mode->clock == 74250)
@@ -282,7 +282,7 @@ static void dss_ldi_set_mode(struct dss_crtc *acrtc)
                 */
                ret = clk_set_rate(ctx->dss_pxl0_clk, clk_Hz);
                if (ret) {
-                       DRM_ERROR("failed to set pixel clk %dHz (%d)\n", 
clk_Hz, ret);
+                       DRM_ERROR("failed to set pixel clk %llu Hz (%d)\n", 
clk_Hz, ret);
                }
 #endif
                adj_mode->clock = clk_Hz / 1000;
@@ -304,20 +304,20 @@ static void dss_ldi_set_mode(struct dss_crtc *acrtc)
                 */
                ret = clk_set_rate(ctx->dss_pxl0_clk, clk_Hz);
                if (ret) {
-                       DRM_ERROR("failed to set pixel clk %dHz (%d)\n", 
clk_Hz, ret);
+                       DRM_ERROR("failed to set pixel clk %llu Hz (%d)\n", 
clk_Hz, ret);
                }
                adj_mode->clock = clk_get_rate(ctx->dss_pxl0_clk) / 1000;
        }
 
-       DRM_INFO("dss_pxl0_clk [%llu]->[%llu] \n", clk_Hz, 
clk_get_rate(ctx->dss_pxl0_clk));
+       DRM_INFO("dss_pxl0_clk [%llu]->[%lu] \n", clk_Hz, 
clk_get_rate(ctx->dss_pxl0_clk));
 
        dpe_init(acrtc);
 }
 
 static int dss_power_up(struct dss_crtc *acrtc)
 {
-       int ret;
        struct dss_hw_ctx *ctx = acrtc->ctx;
+       int ret = 0;
 
 #if defined (CONFIG_HISI_FB_970)
        dpe_common_clk_enable(ctx);
@@ -367,7 +367,8 @@ static int dss_power_up(struct dss_crtc *acrtc)
        dpe_interrupt_unmask(acrtc);
 
        ctx->power_on = true;
-       return 0;
+
+       return ret;
 }
 
 static void dss_power_down(struct dss_crtc *acrtc)
@@ -427,8 +428,6 @@ static irqreturn_t dss_irq_handler(int irq, void *data)
 
        u32 isr_s1 = 0;
        u32 isr_s2 = 0;
-       u32 isr_s2_dpp = 0;
-       u32 isr_s2_smmu = 0;
        u32 mask = 0;
 
        isr_s1 = inp32(dss_base + GLB_CPU_PDP_INTS);
@@ -632,7 +631,6 @@ static int dss_plane_atomic_check(struct drm_plane *plane,
 static void dss_plane_atomic_update(struct drm_plane *plane,
                                    struct drm_plane_state *old_state)
 {
-       struct drm_atomic_state *atomic_state;
        hisi_fb_pan_display(plane);
 }
 
@@ -731,7 +729,6 @@ static int dss_dts_parse(struct platform_device *pdev, 
struct dss_hw_ctx *ctx)
                DRM_ERROR ("failed to get dss base resource.\n");
                return -ENXIO;
        }
-       DRM_INFO("dss base =0x%x.\n", ctx->base);
 
        ctx->peri_crg_base  = of_iomap(np, 1);
        if (!(ctx->peri_crg_base)) {
diff --git a/drivers/staging/hikey9xx/gpu/kirin_drm_overlay_utils.c 
b/drivers/staging/hikey9xx/gpu/kirin_drm_overlay_utils.c
index 5ec71ec53e23..b1081cac5c1c 100644
--- a/drivers/staging/hikey9xx/gpu/kirin_drm_overlay_utils.c
+++ b/drivers/staging/hikey9xx/gpu/kirin_drm_overlay_utils.c
@@ -1356,7 +1356,6 @@ void hisi_dss_smmu_on(struct dss_hw_ctx *ctx)
        struct iommu_domain_data *domain_data = NULL;
        uint32_t phy_pgd_base = 0;
        uint64_t fama_phy_pgd_base;
-       uint32_t fama_ptw_msb;
 
        if (!ctx) {
                DRM_ERROR("ctx is NULL!\n");
@@ -1448,7 +1447,6 @@ void hisifb_mctl_sw_clr(struct dss_crtc *acrtc)
 {
        char __iomem *mctl_base = NULL;
        struct dss_hw_ctx *ctx = acrtc->ctx;
-       int mctl_idx;
        int mctl_status;
        int delay_count = 0;
        bool is_timeout;
@@ -1546,7 +1544,6 @@ void hisi_fb_pan_display(struct drm_plane *plane)
        u32 display_addr = 0;
        u32 hal_fmt;
        int chn_idx = DSS_RCHN_D2;
-       char filename[256] = {0};
 
        int crtc_x = state->crtc_x;
        int crtc_y = state->crtc_y;
diff --git a/drivers/staging/hikey9xx/gpu/kirin_fb_panel.h 
b/drivers/staging/hikey9xx/gpu/kirin_fb_panel.h
index d5be79490b03..0f69af49a355 100644
--- a/drivers/staging/hikey9xx/gpu/kirin_fb_panel.h
+++ b/drivers/staging/hikey9xx/gpu/kirin_fb_panel.h
@@ -184,14 +184,9 @@ int vcc_cmds_tx(struct platform_device *pdev, struct 
vcc_desc *cmds, int cnt);
 int pinctrl_cmds_tx(struct platform_device *pdev, struct pinctrl_cmd_desc 
*cmds, int cnt);
 int gpio_cmds_tx(struct gpio_desc *cmds, int cnt);
 extern struct spi_device *g_spi_dev;
-int spi_cmds_tx(struct spi_device *spi, struct spi_cmd_desc *cmds, int cnt);
 int hisi_pwm_set_backlight(struct backlight_device *bl, uint32_t bl_level);
 
 int hisi_pwm_off(void);
 int hisi_pwm_on(void);
 
-int hisi_lcd_backlight_on(struct drm_panel *p);
-int hisi_lcd_backlight_off(struct drm_panel *p);
-
-
 #endif /* KIRIN_FB_PANEL_H */
diff --git a/drivers/staging/hikey9xx/gpu/kirin_fbdev.c 
b/drivers/staging/hikey9xx/gpu/kirin_fbdev.c
index 80e3dd713914..5d09cf3784a5 100644
--- a/drivers/staging/hikey9xx/gpu/kirin_fbdev.c
+++ b/drivers/staging/hikey9xx/gpu/kirin_fbdev.c
@@ -114,7 +114,7 @@ unsigned long kirin_alloc_fb_buffer(struct kirin_fbdev 
*fbdev, int size)
        fbdev->ion_client = client;
        fbdev->ion_handle = handle;
 
-       DRM_INFO("fbdev->smem_start = 0x%x, fbdev->screen_base = 0x%x\n",
+       DRM_INFO("fbdev->smem_start = 0x%lu, fbdev->screen_base = 0x%p\n",
                fbdev->smem_start, fbdev->screen_base);
 
        return buf_addr;
@@ -164,12 +164,12 @@ static int kirin_fbdev_mmap(struct fb_info *info, struct 
vm_area_struct * vma)
        addr = vma->vm_start;
        offset = vma->vm_pgoff * PAGE_SIZE;
        size = vma->vm_end - vma->vm_start;
-       DRM_INFO("addr = 0x%x, offset = %d, size = %d!\n", addr, offset, size);
+       DRM_INFO("addr = 0x%lu, offset = 0x%lu, size = %lu!\n", addr, offset, 
size);
        if (size > info->fix.smem_len) {
                DRM_ERROR("size=%lu is out of range(%u)!\n", size, 
info->fix.smem_len);
                return -EFAULT;
        }
-       DRM_INFO("fbdev->smem_start = 0x%x, fbdev->screen_base = 0x%x\n",
+       DRM_INFO("fbdev->smem_start = 0x%lu, fbdev->screen_base = 0x%p\n",
                fbdev->smem_start, fbdev->screen_base);
 
        for_each_sg(table->sgl, sg, table->nents, i) {
@@ -194,12 +194,12 @@ static int kirin_fbdev_mmap(struct fb_info *info, struct 
vm_area_struct * vma)
 
                addr += len;
                if (addr >= vma->vm_end) {
-                       DRM_INFO("addr = 0x%x!, vma->vm_end = 0x%x\n", addr, 
vma->vm_end);
+                       DRM_INFO("addr = 0x%lu!, vma->vm_end = 0x%lu \n", addr, 
vma->vm_end);
                        return 0;
                }
        }
 
-       DRM_INFO("kirin_fbdev_mmap addr = 0x%x!\n", addr);
+       DRM_INFO("kirin_fbdev_mmap addr = 0x%lu!\n", addr);
 
        return 0;
 }
-- 
2.26.2

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