From:   Konrad Dybcio <konrad.dybcio@linaro.org>
Date:   Sat, 18 Mar 2023 14:42:48 +0100
Subject: [PATCH v6 2/9] drm/msm/dsi: Get rid of msm_dsi_config::num_dsi
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In-Reply-To: <20230307-topic-dsi_qcm-v6-0-70e13b1214fa@linaro.org>
To:     Rob Clark <robdclark@gmail.com>,
        Abhinav Kumar <quic_abhinavk@quicinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
        Sean Paul <sean@poorly.run>, David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Krishna Manikandan <quic_mkrishn@quicinc.com>,
        Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>
Cc:     Rob Herring <robh@kernel.org>, linux-arm-msm@vger.kernel.org,
        dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        Marijn Suijten <marijn.suijten@somainline.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>
Precedence: bulk

In preparation for supporting multiple sets of possible base registers,
remove the num_dsi variable. We're comparing the io_start array contents
with the reg value from the DTS, so it will either match one of the
expected values or don't match against a zero (which we get from partial
array initialization).

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/gpu/drm/msm/dsi/dsi_cfg.c  | 13 -------------
 drivers/gpu/drm/msm/dsi/dsi_cfg.h  |  1 -
 drivers/gpu/drm/msm/dsi/dsi_host.c |  2 +-
 3 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.c b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
index 6d21f0b33411..4515f52b407a 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_cfg.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
@@ -22,7 +22,6 @@ static const struct msm_dsi_config apq8064_dsi_cfg = {
 	.bus_clk_names = dsi_v2_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_v2_bus_clk_names),
 	.io_start = { 0x4700000, 0x5800000 },
-	.num_dsi = 2,
 };
 
 static const char * const dsi_6g_bus_clk_names[] = {
@@ -42,7 +41,6 @@ static const struct msm_dsi_config msm8974_apq8084_dsi_cfg = {
 	.bus_clk_names = dsi_6g_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
 	.io_start = { 0xfd922800, 0xfd922b00 },
-	.num_dsi = 2,
 };
 
 static const char * const dsi_8916_bus_clk_names[] = {
@@ -61,7 +59,6 @@ static const struct msm_dsi_config msm8916_dsi_cfg = {
 	.bus_clk_names = dsi_8916_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_8916_bus_clk_names),
 	.io_start = { 0x1a98000 },
-	.num_dsi = 1,
 };
 
 static const char * const dsi_8976_bus_clk_names[] = {
@@ -80,7 +77,6 @@ static const struct msm_dsi_config msm8976_dsi_cfg = {
 	.bus_clk_names = dsi_8976_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_8976_bus_clk_names),
 	.io_start = { 0x1a94000, 0x1a96000 },
-	.num_dsi = 2,
 };
 
 static const struct regulator_bulk_data msm8994_dsi_regulators[] = {
@@ -99,7 +95,6 @@ static const struct msm_dsi_config msm8994_dsi_cfg = {
 	.bus_clk_names = dsi_6g_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
 	.io_start = { 0xfd998000, 0xfd9a0000 },
-	.num_dsi = 2,
 };
 
 static const char * const dsi_8996_bus_clk_names[] = {
@@ -119,7 +114,6 @@ static const struct msm_dsi_config msm8996_dsi_cfg = {
 	.bus_clk_names = dsi_8996_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_8996_bus_clk_names),
 	.io_start = { 0x994000, 0x996000 },
-	.num_dsi = 2,
 };
 
 static const char * const dsi_msm8998_bus_clk_names[] = {
@@ -138,7 +132,6 @@ static const struct msm_dsi_config msm8998_dsi_cfg = {
 	.bus_clk_names = dsi_msm8998_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_msm8998_bus_clk_names),
 	.io_start = { 0xc994000, 0xc996000 },
-	.num_dsi = 2,
 };
 
 static const char * const dsi_sdm660_bus_clk_names[] = {
@@ -156,7 +149,6 @@ static const struct msm_dsi_config sdm660_dsi_cfg = {
 	.bus_clk_names = dsi_sdm660_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_sdm660_bus_clk_names),
 	.io_start = { 0xc994000, 0xc996000 },
-	.num_dsi = 2,
 };
 
 static const char * const dsi_sdm845_bus_clk_names[] = {
@@ -178,7 +170,6 @@ static const struct msm_dsi_config sdm845_dsi_cfg = {
 	.bus_clk_names = dsi_sdm845_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_sdm845_bus_clk_names),
 	.io_start = { 0xae94000, 0xae96000 },
-	.num_dsi = 2,
 };
 
 static const struct regulator_bulk_data sm8550_dsi_regulators[] = {
@@ -192,7 +183,6 @@ static const struct msm_dsi_config sm8550_dsi_cfg = {
 	.bus_clk_names = dsi_sdm845_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_sdm845_bus_clk_names),
 	.io_start = { 0xae94000, 0xae96000 },
-	.num_dsi = 2,
 };
 
 static const struct regulator_bulk_data sc7180_dsi_regulators[] = {
@@ -206,7 +196,6 @@ static const struct msm_dsi_config sc7180_dsi_cfg = {
 	.bus_clk_names = dsi_sc7180_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_sc7180_bus_clk_names),
 	.io_start = { 0xae94000 },
-	.num_dsi = 1,
 };
 
 static const char * const dsi_sc7280_bus_clk_names[] = {
@@ -224,7 +213,6 @@ static const struct msm_dsi_config sc7280_dsi_cfg = {
 	.bus_clk_names = dsi_sc7280_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_sc7280_bus_clk_names),
 	.io_start = { 0xae94000, 0xae96000 },
-	.num_dsi = 2,
 };
 
 static const char * const dsi_qcm2290_bus_clk_names[] = {
@@ -242,7 +230,6 @@ static const struct msm_dsi_config qcm2290_dsi_cfg = {
 	.bus_clk_names = dsi_qcm2290_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_qcm2290_bus_clk_names),
 	.io_start = { 0x5e94000 },
-	.num_dsi = 1,
 };
 
 static const struct msm_dsi_host_cfg_ops msm_dsi_v2_host_ops = {
diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.h b/drivers/gpu/drm/msm/dsi/dsi_cfg.h
index 44be4a88aa83..6b6b16c5fd25 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_cfg.h
+++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.h
@@ -39,7 +39,6 @@ struct msm_dsi_config {
 	const char * const *bus_clk_names;
 	const int num_bus_clks;
 	const resource_size_t io_start[DSI_MAX];
-	const int num_dsi;
 };
 
 struct msm_dsi_host_cfg_ops {
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 18fa30e1e858..9021f0d65515 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1868,7 +1868,7 @@ static int dsi_host_get_id(struct msm_dsi_host *msm_host)
 	if (!res)
 		return -EINVAL;
 
-	for (i = 0; i < cfg->num_dsi; i++) {
+	for (i = 0; i < DSI_MAX; i++) {
 		if (cfg->io_start[i] == res->start)
 			return i;
 	}

-- 
2.39.2