linux-kernel - [PATCH 2/3] drm/msm/a6xx: Add speedbin support for A619 GPU

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Message-Id: <20220222012252.6373-2-konrad.dybcio@somainline.org>
Date:   Tue, 22 Feb 2022 02:22:47 +0100
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     ~postmarketos/upstreaming@...ts.sr.ht
Cc:     martin.botka@...ainline.org,
        angelogioacchino.delregno@...ainline.org,
        marijn.suijten@...ainline.org, jamipkettunen@...ainline.org,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>,
        Jordan Crouse <jordan@...micpenguin.net>,
        Jonathan Marek <jonathan@...ek.ca>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] drm/msm/a6xx: Add speedbin support for A619 GPU

There are various SKUs of A619, ranging from 565 MHz to 850 MHz, depending
on the bin. Add support for distinguishing them, so that proper frequency
ranges can be applied, depending on the HW.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...ainline.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index ed9abb2d5e5c..019df7a226b7 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1804,12 +1804,30 @@ static u32 a618_get_speed_bin(u32 fuse)
 	return UINT_MAX;
 }
 
+static u32 a619_get_speed_bin(u32 fuse)
+{
+	if (fuse == 0)
+		return 0;
+	else if (fuse == 120)
+		return 4;
+	else if (fuse == 138)
+		return 3;
+	else if (fuse == 169)
+		return 2;
+	else if (fuse == 180)
+		return 1;
+
+	return UINT_MAX;
+}
+
 static u32 fuse_to_supp_hw(struct device *dev, struct adreno_rev rev, u32 fuse)
 {
 	u32 val = UINT_MAX;
 
 	if (adreno_cmp_rev(ADRENO_REV(6, 1, 8, ANY_ID), rev))
 		val = a618_get_speed_bin(fuse);
+	else if (adreno_cmp_rev(ADRENO_REV(6, 1, 9, ANY_ID), rev))
+		val = a619_get_speed_bin(fuse);
 
 	if (val == UINT_MAX) {
 		DRM_DEV_ERROR(dev,
-- 
2.35.1