Re: [PATCH v3 35/56] drm/omap: dsi: implement check timings
On 09/11/2020 12:47, Laurent Pinchart wrote:
> Hi Tomi and Sebastian,
>
> Thank you for the patch.
>
> On Thu, Nov 05, 2020 at 02:03:12PM +0200, Tomi Valkeinen wrote:
>> From: Sebastian Reichel
>>
>> Implement check timings, which will check if its possible to
>
> s/its/it's/
>
>> configure the clocks for the provided mode using the same code
>> as the set_config() hook.
>>
>> Signed-off-by: Sebastian Reichel
>> Signed-off-by: Tomi Valkeinen
>> ---
>> drivers/gpu/drm/omapdrm/dss/dsi.c | 70 +++
>> 1 file changed, 44 insertions(+), 26 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c
>> b/drivers/gpu/drm/omapdrm/dss/dsi.c
>> index a1a867a7d91d..f643321434e9 100644
>> --- a/drivers/gpu/drm/omapdrm/dss/dsi.c
>> +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
>> @@ -280,6 +280,11 @@ struct dsi_isr_tables {
>> struct dsi_isr_data isr_table_cio[DSI_MAX_NR_ISRS];
>> };
>>
>> +struct dsi_lp_clock_info {
>> +unsigned long lp_clk;
>> +u16 lp_clk_div;
>> +};
>> +
>> struct dsi_clk_calc_ctx {
>> struct dsi_data *dsi;
>> struct dss_pll *pll;
>> @@ -294,16 +299,12 @@ struct dsi_clk_calc_ctx {
>>
>> struct dss_pll_clock_info dsi_cinfo;
>> struct dispc_clock_info dispc_cinfo;
>> +struct dsi_lp_clock_info user_lp_cinfo;
>
> Any reason for the user_ prefix here ?
No, I'll drop it.
Tomi
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Re: [PATCH v3 35/56] drm/omap: dsi: implement check timings
Hi Tomi and Sebastian,
Thank you for the patch.
On Thu, Nov 05, 2020 at 02:03:12PM +0200, Tomi Valkeinen wrote:
> From: Sebastian Reichel
>
> Implement check timings, which will check if its possible to
s/its/it's/
> configure the clocks for the provided mode using the same code
> as the set_config() hook.
>
> Signed-off-by: Sebastian Reichel
> Signed-off-by: Tomi Valkeinen
> ---
> drivers/gpu/drm/omapdrm/dss/dsi.c | 70 +++
> 1 file changed, 44 insertions(+), 26 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c
> b/drivers/gpu/drm/omapdrm/dss/dsi.c
> index a1a867a7d91d..f643321434e9 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dsi.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
> @@ -280,6 +280,11 @@ struct dsi_isr_tables {
> struct dsi_isr_data isr_table_cio[DSI_MAX_NR_ISRS];
> };
>
> +struct dsi_lp_clock_info {
> + unsigned long lp_clk;
> + u16 lp_clk_div;
> +};
> +
> struct dsi_clk_calc_ctx {
> struct dsi_data *dsi;
> struct dss_pll *pll;
> @@ -294,16 +299,12 @@ struct dsi_clk_calc_ctx {
>
> struct dss_pll_clock_info dsi_cinfo;
> struct dispc_clock_info dispc_cinfo;
> + struct dsi_lp_clock_info user_lp_cinfo;
Any reason for the user_ prefix here ?
Reviewed-by: Laurent Pinchart
>
> struct videomode vm;
> struct omap_dss_dsi_videomode_timings dsi_vm;
> };
>
> -struct dsi_lp_clock_info {
> - unsigned long lp_clk;
> - u16 lp_clk_div;
> -};
> -
> struct dsi_module_id_data {
> u32 address;
> int id;
> @@ -4789,44 +4790,55 @@ static bool dsi_is_video_mode(struct omap_dss_device
> *dssdev)
> return (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE);
> }
>
> -static int dsi_set_config(struct omap_dss_device *dssdev,
> - const struct drm_display_mode *mode)
> +static int __dsi_calc_config(struct dsi_data *dsi,
> + const struct drm_display_mode *mode,
> + struct dsi_clk_calc_ctx *ctx)
> {
> - struct dsi_data *dsi = to_dsi_data(dssdev);
> - struct dsi_clk_calc_ctx ctx;
> - struct videomode vm;
> struct omap_dss_dsi_config cfg = dsi->config;
> + struct videomode vm;
> bool ok;
> int r;
>
> drm_display_mode_to_videomode(mode, );
> - cfg.vm =
> -
> - mutex_lock(>lock);
>
> + cfg.vm =
> cfg.mode = dsi->mode;
> cfg.pixel_format = dsi->pix_fmt;
>
> if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE)
> - ok = dsi_vm_calc(dsi, , );
> + ok = dsi_vm_calc(dsi, , ctx);
> else
> - ok = dsi_cm_calc(dsi, , );
> + ok = dsi_cm_calc(dsi, , ctx);
>
> - if (!ok) {
> - DSSERR("failed to find suitable DSI clock settings\n");
> - r = -EINVAL;
> - goto err;
> - }
> + if (!ok)
> + return -EINVAL;
> +
> + dsi_pll_calc_dsi_fck(dsi, >dsi_cinfo);
>
> - dsi_pll_calc_dsi_fck(dsi, _cinfo);
> + r = dsi_lp_clock_calc(ctx->dsi_cinfo.clkout[HSDIV_DSI],
> + cfg.lp_clk_min, cfg.lp_clk_max, >user_lp_cinfo);
> + if (r)
> + return r;
> +
> + return 0;
> +}
>
> - r = dsi_lp_clock_calc(ctx.dsi_cinfo.clkout[HSDIV_DSI],
> - cfg.lp_clk_min, cfg.lp_clk_max, >user_lp_cinfo);
> +static int dsi_set_config(struct omap_dss_device *dssdev,
> + const struct drm_display_mode *mode)
> +{
> + struct dsi_data *dsi = to_dsi_data(dssdev);
> + struct dsi_clk_calc_ctx ctx;
> + int r;
> +
> + mutex_lock(>lock);
> +
> + r = __dsi_calc_config(dsi, mode, );
> if (r) {
> - DSSERR("failed to find suitable DSI LP clock settings\n");
> + DSSERR("failed to find suitable DSI clock settings\n");
> goto err;
> }
>
> + dsi->user_lp_cinfo = ctx.user_lp_cinfo;
> dsi->user_dsi_cinfo = ctx.dsi_cinfo;
> dsi->user_dispc_cinfo = ctx.dispc_cinfo;
>
> @@ -5004,11 +5016,17 @@ static void dsi_set_timings(struct omap_dss_device
> *dssdev,
> static int dsi_check_timings(struct omap_dss_device *dssdev,
>struct drm_display_mode *mode)
> {
> + struct dsi_data *dsi = to_dsi_data(dssdev);
> + struct dsi_clk_calc_ctx ctx;
> + int r;
> +
> DSSDBG("dsi_check_timings\n");
>
> - /* TODO */
> + mutex_lock(>lock);
> + r = __dsi_calc_config(dsi, mode, );
> + mutex_unlock(>lock);
>
> - return 0;
> + return r;
> }
>
> static int dsi_connect(struct omap_dss_device *src,
--
Regards,
Laurent Pinchart
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[PATCH v3 35/56] drm/omap: dsi: implement check timings
From: Sebastian Reichel
Implement check timings, which will check if its possible to
configure the clocks for the provided mode using the same code
as the set_config() hook.
Signed-off-by: Sebastian Reichel
Signed-off-by: Tomi Valkeinen
---
drivers/gpu/drm/omapdrm/dss/dsi.c | 70 +++
1 file changed, 44 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c
b/drivers/gpu/drm/omapdrm/dss/dsi.c
index a1a867a7d91d..f643321434e9 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -280,6 +280,11 @@ struct dsi_isr_tables {
struct dsi_isr_data isr_table_cio[DSI_MAX_NR_ISRS];
};
+struct dsi_lp_clock_info {
+ unsigned long lp_clk;
+ u16 lp_clk_div;
+};
+
struct dsi_clk_calc_ctx {
struct dsi_data *dsi;
struct dss_pll *pll;
@@ -294,16 +299,12 @@ struct dsi_clk_calc_ctx {
struct dss_pll_clock_info dsi_cinfo;
struct dispc_clock_info dispc_cinfo;
+ struct dsi_lp_clock_info user_lp_cinfo;
struct videomode vm;
struct omap_dss_dsi_videomode_timings dsi_vm;
};
-struct dsi_lp_clock_info {
- unsigned long lp_clk;
- u16 lp_clk_div;
-};
-
struct dsi_module_id_data {
u32 address;
int id;
@@ -4789,44 +4790,55 @@ static bool dsi_is_video_mode(struct omap_dss_device
*dssdev)
return (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE);
}
-static int dsi_set_config(struct omap_dss_device *dssdev,
- const struct drm_display_mode *mode)
+static int __dsi_calc_config(struct dsi_data *dsi,
+ const struct drm_display_mode *mode,
+ struct dsi_clk_calc_ctx *ctx)
{
- struct dsi_data *dsi = to_dsi_data(dssdev);
- struct dsi_clk_calc_ctx ctx;
- struct videomode vm;
struct omap_dss_dsi_config cfg = dsi->config;
+ struct videomode vm;
bool ok;
int r;
drm_display_mode_to_videomode(mode, );
- cfg.vm =
-
- mutex_lock(>lock);
+ cfg.vm =
cfg.mode = dsi->mode;
cfg.pixel_format = dsi->pix_fmt;
if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE)
- ok = dsi_vm_calc(dsi, , );
+ ok = dsi_vm_calc(dsi, , ctx);
else
- ok = dsi_cm_calc(dsi, , );
+ ok = dsi_cm_calc(dsi, , ctx);
- if (!ok) {
- DSSERR("failed to find suitable DSI clock settings\n");
- r = -EINVAL;
- goto err;
- }
+ if (!ok)
+ return -EINVAL;
+
+ dsi_pll_calc_dsi_fck(dsi, >dsi_cinfo);
- dsi_pll_calc_dsi_fck(dsi, _cinfo);
+ r = dsi_lp_clock_calc(ctx->dsi_cinfo.clkout[HSDIV_DSI],
+ cfg.lp_clk_min, cfg.lp_clk_max, >user_lp_cinfo);
+ if (r)
+ return r;
+
+ return 0;
+}
- r = dsi_lp_clock_calc(ctx.dsi_cinfo.clkout[HSDIV_DSI],
- cfg.lp_clk_min, cfg.lp_clk_max, >user_lp_cinfo);
+static int dsi_set_config(struct omap_dss_device *dssdev,
+ const struct drm_display_mode *mode)
+{
+ struct dsi_data *dsi = to_dsi_data(dssdev);
+ struct dsi_clk_calc_ctx ctx;
+ int r;
+
+ mutex_lock(>lock);
+
+ r = __dsi_calc_config(dsi, mode, );
if (r) {
- DSSERR("failed to find suitable DSI LP clock settings\n");
+ DSSERR("failed to find suitable DSI clock settings\n");
goto err;
}
+ dsi->user_lp_cinfo = ctx.user_lp_cinfo;
dsi->user_dsi_cinfo = ctx.dsi_cinfo;
dsi->user_dispc_cinfo = ctx.dispc_cinfo;
@@ -5004,11 +5016,17 @@ static void dsi_set_timings(struct omap_dss_device
*dssdev,
static int dsi_check_timings(struct omap_dss_device *dssdev,
struct drm_display_mode *mode)
{
+ struct dsi_data *dsi = to_dsi_data(dssdev);
+ struct dsi_clk_calc_ctx ctx;
+ int r;
+
DSSDBG("dsi_check_timings\n");
- /* TODO */
+ mutex_lock(>lock);
+ r = __dsi_calc_config(dsi, mode, );
+ mutex_unlock(>lock);
- return 0;
+ return r;
}
static int dsi_connect(struct omap_dss_device *src,
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
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