On Wed, 1 Jun 2022 at 02:01, Douglas Anderson dianders@chromium.org wrote:
In commit a670ff578f1f ("drm/msm/dpu: always use mdp device to scale bandwidth") we fully moved interconnect stuff to the DPU driver. This had no change for sc7180 but _did_ have an impact for other SoCs. It made them match the sc7180 scheme.
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Changes in v2:
- Don't set bandwidth in init.
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 8 ---- drivers/gpu/drm/msm/msm_mdss.c | 57 +++++++++++++++++++++++++ 2 files changed, 57 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 2b9d931474e0..3025184053e0 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -49,8 +49,6 @@ #define DPU_DEBUGFS_DIR "msm_dpu" #define DPU_DEBUGFS_HWMASKNAME "hw_log_mask"
-#define MIN_IB_BW 400000000ULL /* Min ib vote 400MB */
static int dpu_kms_hw_init(struct msm_kms *kms); static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms);
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diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c index 0454a571adf7..e13c5c12b775 100644 --- a/drivers/gpu/drm/msm/msm_mdss.c +++ b/drivers/gpu/drm/msm/msm_mdss.c @@ -5,6 +5,7 @@
#include <linux/clk.h> #include <linux/delay.h> +#include <linux/interconnect.h> #include <linux/irq.h> #include <linux/irqchip.h> #include <linux/irqdesc.h> @@ -25,6 +26,8 @@ #define UBWC_CTRL_2 0x150 #define UBWC_PREDICTION_MODE 0x154
+#define MIN_IB_BW 400000000UL /* Min ib vote 400MB */
As msm_mdss is now used for both DPU and MDP5 devices, could you please confirm that this value is valid for older devices too? E.g. db410c or 8974
struct msm_mdss { struct device *dev;