From 60e09765cee19f8e2abc95c1afd33729910a45ab Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 9 Jun 2023 17:13:53 +0300 Subject: [PATCH] drm/i915/psr: Fix BDW PSR AUX CH data register offsets MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit fdffb7dbc74f48cb1d404d9ab0c9fd769a59caf0 ] The multiplication got replaced by an addition in some cleanup. This means we never write the correct data to some of the BDW PSR data registers and thus we fail to actually wake up the panel from PSR. Fixes: 4ab4fa103217 ("drm/i915/psr: Make PSR registers relative to transcoders") Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20230609141404.12729-3-ville.syrjala@linux.intel.com Reviewed-by: Jouni Högander (cherry picked from commit 460dc4ba1442b3e5e543328d11db2702b98d3d7c) Signed-off-by: Tvrtko Ursulin Signed-off-by: Sasha Levin --- drivers/gpu/drm/i915/display/intel_psr_regs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_psr_regs.h b/drivers/gpu/drm/i915/display/intel_psr_regs.h index 958d8cabc44b..5e3fe23ef8eb 100644 --- a/drivers/gpu/drm/i915/display/intel_psr_regs.h +++ b/drivers/gpu/drm/i915/display/intel_psr_regs.h @@ -75,7 +75,7 @@ #define _SRD_AUX_DATA_A 0x60814 #define _SRD_AUX_DATA_EDP 0x6f814 -#define EDP_PSR_AUX_DATA(tran, i) _MMIO_TRANS2(tran, _SRD_AUX_DATA_A + (i) + 4) /* 5 registers */ +#define EDP_PSR_AUX_DATA(tran, i) _MMIO_TRANS2(tran, _SRD_AUX_DATA_A + (i) * 4) /* 5 registers */ #define _SRD_STATUS_A 0x60840 #define _SRD_STATUS_EDP 0x6f840