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drm: adv7511: Add max_lane_freq_khz variable to struct adv7511_chip_info

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The ADV7533 supports a maximum lane clock of 800MHz whereas it is 891MHz
for ADV7535. Add max_lane_freq_khz variable to struct adv7511_chip_info to
handle this difference.

While at it, drop the unused local variable max_lane_freq.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230830142358.275459-4-biju.das.jz@bp.renesas.com
This commit is contained in:
Biju Das 2023-08-30 15:23:53 +01:00 committed by Robert Foss
parent 11ae4e406d
commit 399562fc02
No known key found for this signature in database
GPG Key ID: 3EFD900F76D1D784
3 changed files with 4 additions and 4 deletions
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1
drivers/gpu/drm/bridge/adv7511/adv7511.h
View File

@ -336,6 +336,7 @@ enum adv7511_type {
struct adv7511_chip_info {
enum adv7511_type type;
unsigned int max_mode_clock_khz;
unsigned int max_lane_freq_khz;
};
struct adv7511 {

2
drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
View File

@ -1370,11 +1370,13 @@ static const struct adv7511_chip_info adv7511_chip_info = {
static const struct adv7511_chip_info adv7533_chip_info = {
.type = ADV7533,
.max_mode_clock_khz = 80000,
.max_lane_freq_khz = 800000,
};
static const struct adv7511_chip_info adv7535_chip_info = {
.type = ADV7535,
.max_mode_clock_khz = 148500,
.max_lane_freq_khz = 891000,
};
static const struct i2c_device_id adv7511_i2c_ids[] = {

5
drivers/gpu/drm/bridge/adv7511/adv7533.c
View File

@ -103,7 +103,6 @@ void adv7533_dsi_power_off(struct adv7511 *adv)
enum drm_mode_status adv7533_mode_valid(struct adv7511 *adv,
const struct drm_display_mode *mode)
{
unsigned long max_lane_freq;
struct mipi_dsi_device *dsi = adv->dsi;
u8 bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
@ -112,9 +111,7 @@ enum drm_mode_status adv7533_mode_valid(struct adv7511 *adv,
return MODE_CLOCK_HIGH;
/* Check max clock for each lane */
max_lane_freq = (adv->info->type == ADV7533 ? 800000 : 891000);
if (mode->clock * bpp > max_lane_freq * adv->num_dsi_lanes)
if (mode->clock * bpp > adv->info->max_lane_freq_khz * adv->num_dsi_lanes)
return MODE_CLOCK_HIGH;
return MODE_OK;