diff options
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_hvs.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hvs.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c index 5a43659da319..b7ef330cc300 100644 --- a/drivers/gpu/drm/vc4/vc4_hvs.c +++ b/drivers/gpu/drm/vc4/vc4_hvs.c @@ -19,6 +19,7 @@ * each CRTC. */ +#include <linux/clk.h> #include <linux/component.h> #include <linux/platform_device.h> @@ -223,6 +224,7 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data) struct vc4_hvs *hvs = NULL; int ret; u32 dispctrl; + unsigned int hvs_version; hvs = devm_kzalloc(&pdev->dev, sizeof(*hvs), GFP_KERNEL); if (!hvs) @@ -238,7 +240,20 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data) hvs->regset.regs = hvs_regs; hvs->regset.nregs = ARRAY_SIZE(hvs_regs); - hvs->dlist = hvs->regs + SCALER_DLIST_START; + hvs->core_clk = devm_clk_get_optional(&pdev->dev, NULL); + if (IS_ERR(hvs->core_clk)) { + dev_err(&pdev->dev, "Couldn't get core clock\n"); + return PTR_ERR(hvs->regs); + } + + hvs_version = readl(hvs->regs + SCALER_DISPLSTAT) >> 24; + if (hvs_version >= 0x40) + hvs->hvs5 = true; + + if (!hvs->hvs5) + hvs->dlist = hvs->regs + SCALER_DLIST_START; + else + hvs->dlist = hvs->regs + SCALER5_DLIST_START; spin_lock_init(&hvs->mm_lock); @@ -256,7 +271,12 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data) * between planes when they don't overlap on the screen, but * for now we just allocate globally. */ - drm_mm_init(&hvs->lbm_mm, 0, 96 * 1024); + if (!hvs->hvs5) + /* 96kB */ + drm_mm_init(&hvs->lbm_mm, 0, 96 * 1024); + else + /* 70k words */ + drm_mm_init(&hvs->lbm_mm, 0, 70 * 2 * 1024); /* Upload filter kernels. We only have the one for now, so we * keep it around for the lifetime of the driver. |