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msm:disp:dpu1: add UBWC support for display on SC7180

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Add UBWC global configuration for display on
SC7180 target.

Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Fixes: 73bfb790ac ("msm:disp:dpu1: setup display datapath for SC7180 target")
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Kalyan Thota 2020-01-23 15:47:55 +05:30 committed by Rob Clark
parent ef8c9809ac
commit e4f9bbe9f8
1 changed files with 57 additions and 1 deletions
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58
drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
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@ -12,6 +12,7 @@
#define to_dpu_mdss(x) container_of(x, struct dpu_mdss, base)
#define HW_REV 0x0
#define HW_INTR_STATUS 0x0010
/* Max BW defined in KBps */
@ -22,6 +23,17 @@ struct dpu_irq_controller {
struct irq_domain *domain;
};
struct dpu_hw_cfg {
u32 val;
u32 offset;
};
struct dpu_mdss_hw_init_handler {
u32 hw_rev;
u32 hw_reg_count;
struct dpu_hw_cfg* hw_cfg;
};
struct dpu_mdss {
struct msm_mdss base;
void __iomem *mmio;
@ -32,6 +44,44 @@ struct dpu_mdss {
u32 num_paths;
};
static struct dpu_hw_cfg hw_cfg[] = {
{
/* UBWC global settings */
.val = 0x1E,
.offset = 0x144,
}
};
static struct dpu_mdss_hw_init_handler cfg_handler[] = {
{ .hw_rev = DPU_HW_VER_620,
.hw_reg_count = ARRAY_SIZE(hw_cfg),
.hw_cfg = hw_cfg
},
};
static void dpu_mdss_hw_init(struct dpu_mdss *dpu_mdss, u32 hw_rev)
{
int i;
u32 count = 0;
struct dpu_hw_cfg *hw_cfg = NULL;
for (i = 0; i < ARRAY_SIZE(cfg_handler); i++) {
if (cfg_handler[i].hw_rev == hw_rev) {
hw_cfg = cfg_handler[i].hw_cfg;
count = cfg_handler[i].hw_reg_count;
break;
}
}
for (i = 0; i < count; i++ ) {
writel_relaxed(hw_cfg->val,
dpu_mdss->mmio + hw_cfg->offset);
hw_cfg++;
}
return;
}
static int dpu_mdss_parse_data_bus_icc_path(struct drm_device *dev,
struct dpu_mdss *dpu_mdss)
{
@ -174,12 +224,18 @@ static int dpu_mdss_enable(struct msm_mdss *mdss)
struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss);
struct dss_module_power *mp = &dpu_mdss->mp;
int ret;
u32 mdss_rev;
dpu_mdss_icc_request_bw(mdss);
ret = msm_dss_enable_clk(mp->clk_config, mp->num_clk, true);
if (ret)
if (ret) {
DPU_ERROR("clock enable failed, ret:%d\n", ret);
return ret;
}
mdss_rev = readl_relaxed(dpu_mdss->mmio + HW_REV);
dpu_mdss_hw_init(dpu_mdss, mdss_rev);
return ret;
}