Rob,
Any feedback on this? The patches were sent about two weeks ago.
On Thu, 25 Feb 2021 at 01:47, Dmitry Baryshkov
<dmitry.baryshkov@xxxxxxxxxx> wrote:
>
> Fix setting min/max DSI PLL rate for the V4.1 7nm DSI PLL (used on
> sm8250). Current code checks for pll->type before it is set (as it is
> set in the msm_dsi_pll_init() after calling device-specific functions.
>
> Cc: Jonathan Marek <jonathan@xxxxxxxx>
> Fixes: 1ef7c99d145c ("drm/msm/dsi: add support for 7nm DSI PHY/PLL")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> ---
> drivers/gpu/drm/msm/dsi/pll/dsi_pll.c | 2 +-
> drivers/gpu/drm/msm/dsi/pll/dsi_pll.h | 6 ++++--
> drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c | 5 +++--
> 3 files changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/dsi/pll/dsi_pll.c b/drivers/gpu/drm/msm/dsi/pll/dsi_pll.c
> index a45fe95aff49..3dc65877fa10 100644
> --- a/drivers/gpu/drm/msm/dsi/pll/dsi_pll.c
> +++ b/drivers/gpu/drm/msm/dsi/pll/dsi_pll.c
> @@ -163,7 +163,7 @@ struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
> break;
> case MSM_DSI_PHY_7NM:
> case MSM_DSI_PHY_7NM_V4_1:
> - pll = msm_dsi_pll_7nm_init(pdev, id);
> + pll = msm_dsi_pll_7nm_init(pdev, type, id);
> break;
> default:
> pll = ERR_PTR(-ENXIO);
> diff --git a/drivers/gpu/drm/msm/dsi/pll/dsi_pll.h b/drivers/gpu/drm/msm/dsi/pll/dsi_pll.h
> index 3405982a092c..bbecb1de5678 100644
> --- a/drivers/gpu/drm/msm/dsi/pll/dsi_pll.h
> +++ b/drivers/gpu/drm/msm/dsi/pll/dsi_pll.h
> @@ -117,10 +117,12 @@ msm_dsi_pll_10nm_init(struct platform_device *pdev, int id)
> }
> #endif
> #ifdef CONFIG_DRM_MSM_DSI_7NM_PHY
> -struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev, int id);
> +struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev,
> + enum msm_dsi_phy_type type, int id);
> #else
> static inline struct msm_dsi_pll *
> -msm_dsi_pll_7nm_init(struct platform_device *pdev, int id)
> +msm_dsi_pll_7nm_init(struct platform_device *pdev,
> + enum msm_dsi_phy_type type, int id)
> {
> return ERR_PTR(-ENODEV);
> }
> diff --git a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c
> index 93bf142e4a4e..c1f6708367ae 100644
> --- a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c
> +++ b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c
> @@ -852,7 +852,8 @@ static int pll_7nm_register(struct dsi_pll_7nm *pll_7nm)
> return ret;
> }
>
> -struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev, int id)
> +struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev,
> + enum msm_dsi_phy_type type, int id)
> {
> struct dsi_pll_7nm *pll_7nm;
> struct msm_dsi_pll *pll;
> @@ -885,7 +886,7 @@ struct msm_dsi_pll *msm_dsi_pll_7nm_init(struct platform_device *pdev, int id)
> pll = &pll_7nm->base;
> pll->min_rate = 1000000000UL;
> pll->max_rate = 3500000000UL;
> - if (pll->type == MSM_DSI_PHY_7NM_V4_1) {
> + if (type == MSM_DSI_PHY_7NM_V4_1) {
> pll->min_rate = 600000000UL;
> pll->max_rate = (unsigned long)5000000000ULL;
> /* workaround for max rate overflowing on 32-bit builds: */
> --
> 2.30.0
>
--
With best wishes
Dmitry
