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https://github.com/Ysurac/openmptcprouter.git
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122 lines
2.8 KiB
Diff
122 lines
2.8 KiB
Diff
From da87f37b0b331dd7f1bb8166030dd04c72e20178 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <mripard@kernel.org>
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Date: Fri, 21 Jun 2024 16:20:46 +0100
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Subject: [PATCH 592/697] drm/vc4: hvs: Use switch statement to simplify
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vc4_hvs_get_fifo_from_output
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Since we'll support BCM2712 soon, let's move the logic behind
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vc4_hvs_get_fifo_from_output() to a switch to extend it more easily.
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Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Reviewed-by: Maxime Ripard <mripard@kernel.org>
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Link: https://patchwork.freedesktop.org/patch/msgid/20240621152055.4180873-23-dave.stevenson@raspberrypi.com
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/vc4/vc4_hvs.c | 77 +++++++++++++++++++----------------
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1 file changed, 42 insertions(+), 35 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_hvs.c
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+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
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@@ -297,53 +297,60 @@ int vc4_hvs_get_fifo_from_output(struct
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u32 reg;
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int ret;
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- if (vc4->gen == VC4_GEN_4)
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+ switch (vc4->gen) {
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+ case VC4_GEN_4:
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return output;
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- /*
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- * NOTE: We should probably use drm_dev_enter()/drm_dev_exit()
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- * here, but this function is only used during the DRM device
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- * initialization, so we should be fine.
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- */
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-
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- switch (output) {
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- case 0:
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- return 0;
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-
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- case 1:
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- return 1;
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-
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- case 2:
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- reg = HVS_READ(SCALER_DISPECTRL);
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- ret = FIELD_GET(SCALER_DISPECTRL_DSP2_MUX_MASK, reg);
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- if (ret == 0)
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- return 2;
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-
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- return 0;
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-
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- case 3:
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- reg = HVS_READ(SCALER_DISPCTRL);
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- ret = FIELD_GET(SCALER_DISPCTRL_DSP3_MUX_MASK, reg);
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- if (ret == 3)
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- return -EPIPE;
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+ case VC4_GEN_5:
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+ /*
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+ * NOTE: We should probably use
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+ * drm_dev_enter()/drm_dev_exit() here, but this
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+ * function is only used during the DRM device
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+ * initialization, so we should be fine.
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+ */
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+
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+ switch (output) {
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+ case 0:
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+ return 0;
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+
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+ case 1:
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+ return 1;
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+
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+ case 2:
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+ reg = HVS_READ(SCALER_DISPECTRL);
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+ ret = FIELD_GET(SCALER_DISPECTRL_DSP2_MUX_MASK, reg);
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+ if (ret == 0)
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+ return 2;
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+
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+ return 0;
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+
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+ case 3:
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+ reg = HVS_READ(SCALER_DISPCTRL);
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+ ret = FIELD_GET(SCALER_DISPCTRL_DSP3_MUX_MASK, reg);
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+ if (ret == 3)
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+ return -EPIPE;
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+
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+ return ret;
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+
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+ case 4:
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+ reg = HVS_READ(SCALER_DISPEOLN);
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+ ret = FIELD_GET(SCALER_DISPEOLN_DSP4_MUX_MASK, reg);
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+ if (ret == 3)
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+ return -EPIPE;
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+
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+ return ret;
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+
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+ case 5:
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+ reg = HVS_READ(SCALER_DISPDITHER);
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+ ret = FIELD_GET(SCALER_DISPDITHER_DSP5_MUX_MASK, reg);
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+ if (ret == 3)
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+ return -EPIPE;
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- return ret;
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+ return ret;
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- case 4:
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- reg = HVS_READ(SCALER_DISPEOLN);
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- ret = FIELD_GET(SCALER_DISPEOLN_DSP4_MUX_MASK, reg);
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- if (ret == 3)
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+ default:
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return -EPIPE;
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-
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- return ret;
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-
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- case 5:
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- reg = HVS_READ(SCALER_DISPDITHER);
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- ret = FIELD_GET(SCALER_DISPDITHER_DSP5_MUX_MASK, reg);
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- if (ret == 3)
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- return -EPIPE;
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-
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- return ret;
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+ }
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default:
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return -EPIPE;
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