drm/msm: get rid of msm_iomap_size

Instead of looping throught the resources each time to get the DSI CTRL
area size, get it at the ioremap time.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Link: https://lore.kernel.org/r/20210427001828.2375555-4-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 1a63368..b3ee5c0 100644 (file)
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -102,6 +102,7 @@ struct msm_dsi_host {
        int id;
 
        void __iomem *ctrl_base;
+       phys_addr_t ctrl_size;
        struct regulator_bulk_data supplies[DSI_DEV_REGULATOR_MAX];
 
        struct clk *bus_clks[DSI_BUS_CLK_MAX];
@@ -1839,7 +1840,7 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
                goto fail;
        }
 
-       msm_host->ctrl_base = msm_ioremap(pdev, "dsi_ctrl", "DSI CTRL");
+       msm_host->ctrl_base = msm_ioremap_size(pdev, "dsi_ctrl", "DSI CTRL", &msm_host->ctrl_size);
        if (IS_ERR(msm_host->ctrl_base)) {
                pr_err("%s: unable to map Dsi ctrl base\n", __func__);
                ret = PTR_ERR(msm_host->ctrl_base);
@@ -2494,7 +2495,7 @@ void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_ho
 
        pm_runtime_get_sync(&msm_host->pdev->dev);
 
-       msm_disp_snapshot_add_block(disp_state, msm_iomap_size(msm_host->pdev, "dsi_ctrl"),
+       msm_disp_snapshot_add_block(disp_state, msm_host->ctrl_size,
                        msm_host->ctrl_base, "dsi%d_ctrl", msm_host->id);
 
        pm_runtime_put_sync(&msm_host->pdev->dev);

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 74e5e5a..3ecf617 100644 (file)
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -124,7 +124,7 @@ struct clk *msm_clk_get(struct platform_device *pdev, const char *name)
 }
 
 static void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name,
-                                 const char *dbgname, bool quiet)
+                                 const char *dbgname, bool quiet, phys_addr_t *psize)
 {
        struct resource *res;
        unsigned long size;
@@ -153,37 +153,28 @@ static void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name
        if (reglog)
                printk(KERN_DEBUG "IO:region %s %p %08lx\n", dbgname, ptr, size);
 
+       if (psize)
+               *psize = size;
+
        return ptr;
 }
 
 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
                          const char *dbgname)
 {
-       return _msm_ioremap(pdev, name, dbgname, false);
+       return _msm_ioremap(pdev, name, dbgname, false, NULL);
 }
 
 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name,
                                const char *dbgname)
 {
-       return _msm_ioremap(pdev, name, dbgname, true);
+       return _msm_ioremap(pdev, name, dbgname, true, NULL);
 }
 
-unsigned long msm_iomap_size(struct platform_device *pdev, const char *name)
+void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
+                         const char *dbgname, phys_addr_t *psize)
 {
-       struct resource *res;
-
-       if (name)
-               res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
-       else
-               res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-       if (!res) {
-               dev_dbg(&pdev->dev, "failed to get memory resource: %s\n",
-                               name);
-               return 0;
-       }
-
-       return resource_size(res);
+       return _msm_ioremap(pdev, name, dbgname, false, psize);
 }
 
 void msm_writel(u32 data, void __iomem *addr)

diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 15cb344..c33fc12 100644 (file)
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -450,9 +450,10 @@ struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
        const char *name);
 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
                const char *dbgname);
+void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
+               const char *dbgname, phys_addr_t *size);
 void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name,
                const char *dbgname);
-unsigned long msm_iomap_size(struct platform_device *pdev, const char *name);
 void msm_writel(u32 data, void __iomem *addr);
 u32 msm_readl(const void __iomem *addr);
 void msm_rmw(void __iomem *addr, u32 mask, u32 or);