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2e715fb4fc
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y
Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B
Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
126 lines
2.7 KiB
Diff
126 lines
2.7 KiB
Diff
From 72e5eb3d9511af2f056911d70c4d033d4fc674b2 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Fri, 17 Feb 2023 15:07:29 +0100
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Subject: [PATCH] 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 <maxime@cerno.tech>
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---
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drivers/gpu/drm/vc4/vc4_hvs.c | 80 +++++++++++++++++++----------------
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1 file changed, 43 insertions(+), 37 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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@@ -620,57 +620,63 @@ 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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-
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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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+ 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 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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+ 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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- default:
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- return -EPIPE;
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+ }
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}
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+
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+ return -EPIPE;
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}
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static int vc4_hvs_init_channel(struct vc4_hvs *hvs, struct drm_crtc *crtc,
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