Function mtk_dsi_ps_control() is a subset of mtk_dsi_ps_control_vact(): merge the two in one mtk_dsi_ps_control() function by adding one function parameter `config_vact` which, when true, writes the VACT related registers.
Reviewed-by: Fei Shao <fs...@chromium.org> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delre...@collabora.com> --- drivers/gpu/drm/mediatek/mtk_dsi.c | 76 +++++++++--------------------- 1 file changed, 23 insertions(+), 53 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 9fbf293db1c8..b025886be680 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -351,40 +351,6 @@ static void mtk_dsi_set_vm_cmd(struct mtk_dsi *dsi) mtk_dsi_mask(dsi, DSI_VM_CMD_CON, TS_VFP_EN, TS_VFP_EN); } -static void mtk_dsi_ps_control_vact(struct mtk_dsi *dsi) -{ - struct videomode *vm = &dsi->vm; - u32 dsi_buf_bpp, ps_wc; - u32 ps_bpp_mode; - - if (dsi->format == MIPI_DSI_FMT_RGB565) - dsi_buf_bpp = 2; - else - dsi_buf_bpp = 3; - - ps_wc = vm->hactive * dsi_buf_bpp; - ps_bpp_mode = ps_wc; - - switch (dsi->format) { - case MIPI_DSI_FMT_RGB888: - ps_bpp_mode |= PACKED_PS_24BIT_RGB888; - break; - case MIPI_DSI_FMT_RGB666: - ps_bpp_mode |= LOOSELY_PS_24BIT_RGB666; - break; - case MIPI_DSI_FMT_RGB666_PACKED: - ps_bpp_mode |= PACKED_PS_18BIT_RGB666; - break; - case MIPI_DSI_FMT_RGB565: - ps_bpp_mode |= PACKED_PS_16BIT_RGB565; - break; - } - - writel(vm->vactive, dsi->regs + DSI_VACT_NL); - writel(ps_bpp_mode, dsi->regs + DSI_PSCTRL); - writel(ps_wc, dsi->regs + DSI_HSTX_CKL_WC); -} - static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi) { u32 tmp_reg; @@ -416,36 +382,40 @@ static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi) writel(tmp_reg, dsi->regs + DSI_TXRX_CTRL); } -static void mtk_dsi_ps_control(struct mtk_dsi *dsi) +static void mtk_dsi_ps_control(struct mtk_dsi *dsi, bool config_vact) { - u32 dsi_tmp_buf_bpp; - u32 tmp_reg; + struct videomode *vm = &dsi->vm; + u32 dsi_buf_bpp, ps_wc; + u32 ps_bpp_mode; + + if (dsi->format == MIPI_DSI_FMT_RGB565) + dsi_buf_bpp = 2; + else + dsi_buf_bpp = 3; + + ps_wc = vm->hactive * dsi_buf_bpp; + ps_bpp_mode = ps_wc; switch (dsi->format) { case MIPI_DSI_FMT_RGB888: - tmp_reg = PACKED_PS_24BIT_RGB888; - dsi_tmp_buf_bpp = 3; + ps_bpp_mode |= PACKED_PS_24BIT_RGB888; break; case MIPI_DSI_FMT_RGB666: - tmp_reg = LOOSELY_PS_24BIT_RGB666; - dsi_tmp_buf_bpp = 3; + ps_bpp_mode |= LOOSELY_PS_24BIT_RGB666; break; case MIPI_DSI_FMT_RGB666_PACKED: - tmp_reg = PACKED_PS_18BIT_RGB666; - dsi_tmp_buf_bpp = 3; + ps_bpp_mode |= PACKED_PS_18BIT_RGB666; break; case MIPI_DSI_FMT_RGB565: - tmp_reg = PACKED_PS_16BIT_RGB565; - dsi_tmp_buf_bpp = 2; - break; - default: - tmp_reg = PACKED_PS_24BIT_RGB888; - dsi_tmp_buf_bpp = 3; + ps_bpp_mode |= PACKED_PS_16BIT_RGB565; break; } - tmp_reg += dsi->vm.hactive * dsi_tmp_buf_bpp & DSI_PS_WC; - writel(tmp_reg, dsi->regs + DSI_PSCTRL); + if (config_vact) { + writel(vm->vactive, dsi->regs + DSI_VACT_NL); + writel(ps_wc, dsi->regs + DSI_HSTX_CKL_WC); + } + writel(ps_bpp_mode, dsi->regs + DSI_PSCTRL); } static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi) @@ -521,7 +491,7 @@ static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi) writel(horizontal_backporch_byte, dsi->regs + DSI_HBP_WC); writel(horizontal_frontporch_byte, dsi->regs + DSI_HFP_WC); - mtk_dsi_ps_control(dsi); + mtk_dsi_ps_control(dsi, false); } static void mtk_dsi_start(struct mtk_dsi *dsi) @@ -666,7 +636,7 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi) mtk_dsi_reset_engine(dsi); mtk_dsi_phy_timconfig(dsi); - mtk_dsi_ps_control_vact(dsi); + mtk_dsi_ps_control(dsi, true); mtk_dsi_set_vm_cmd(dsi); mtk_dsi_config_vdo_timing(dsi); mtk_dsi_set_interrupt_enable(dsi); -- 2.43.0