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From:   Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To:     linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org,
        hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com,
        rfoss@kernel.org, todor.too@gmail.com, agross@kernel.org,
        andersson@kernel.org, konrad.dybcio@linaro.org, mchehab@kernel.org,
        sakari.ailus@linux.intel.com, andrey.konovalov@linaro.org
Cc:     linux-kernel@vger.kernel.org,
        Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Subject: [RESEND PATCH v6 07/17] media: qcom: camss: Pass CAMSS subdev callbacks via resource ops pointer
Date:   Mon, 25 Sep 2023 16:46:57 +0100
Message-ID: <20230925154707.837542-8-bryan.odonoghue@linaro.org>
In-Reply-To: <20230925154707.837542-1-bryan.odonoghue@linaro.org>
References: <20230925154707.837542-1-bryan.odonoghue@linaro.org>
MIME-Version: 1.0
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Precedence: bulk

It is possible to pass all of the CAMSS subdevice internal operations
pointers from the controlling resources structure with an additional
pointer added to the resources structure.

This allows for the removal of most of the probe-time control structures.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 .../media/platform/qcom/camss/camss-csid.c    |  12 +-
 .../media/platform/qcom/camss/camss-csiphy.c  |   4 +-
 drivers/media/platform/qcom/camss/camss-vfe.c |  20 +--
 drivers/media/platform/qcom/camss/camss.c     | 117 ++++++++++++------
 drivers/media/platform/qcom/camss/camss.h     |   1 +
 5 files changed, 86 insertions(+), 68 deletions(-)

diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c
index 14abb7a7ceb47..99f651e2021cb 100644
--- a/drivers/media/platform/qcom/camss/camss-csid.c
+++ b/drivers/media/platform/qcom/camss/camss-csid.c
@@ -575,18 +575,8 @@ int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid,
 
 	csid->camss = camss;
 	csid->id = id;
+	csid->ops = res->ops;
 
-	if (camss->res->version == CAMSS_8x16) {
-		csid->ops = &csid_ops_4_1;
-	} else if (camss->res->version == CAMSS_8x96 ||
-		   camss->res->version == CAMSS_660) {
-		csid->ops = &csid_ops_4_7;
-	} else if (camss->res->version == CAMSS_845 ||
-		   camss->res->version == CAMSS_8250) {
-		csid->ops = &csid_ops_gen2;
-	} else {
-		return -EINVAL;
-	}
 	csid->ops->subdev_init(csid);
 
 	/* Memory */
diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c
index 48e6a101ec9c9..4310a132dcbe2 100644
--- a/drivers/media/platform/qcom/camss/camss-csiphy.c
+++ b/drivers/media/platform/qcom/camss/camss-csiphy.c
@@ -556,19 +556,17 @@ int msm_csiphy_subdev_init(struct camss *camss,
 	csiphy->camss = camss;
 	csiphy->id = id;
 	csiphy->cfg.combo_mode = 0;
+	csiphy->ops = res->ops;
 
 	if (camss->res->version == CAMSS_8x16) {
-		csiphy->ops = &csiphy_ops_2ph_1_0;
 		csiphy->formats = csiphy_formats_8x16;
 		csiphy->nformats = ARRAY_SIZE(csiphy_formats_8x16);
 	} else if (camss->res->version == CAMSS_8x96 ||
 		   camss->res->version == CAMSS_660) {
-		csiphy->ops = &csiphy_ops_3ph_1_0;
 		csiphy->formats = csiphy_formats_8x96;
 		csiphy->nformats = ARRAY_SIZE(csiphy_formats_8x96);
 	} else if (camss->res->version == CAMSS_845 ||
 		   camss->res->version == CAMSS_8250) {
-		csiphy->ops = &csiphy_ops_3ph_1_0;
 		csiphy->formats = csiphy_formats_sdm845;
 		csiphy->nformats = ARRAY_SIZE(csiphy_formats_sdm845);
 	} else {
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index f381c82f1f877..4d5c32d3dddbf 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -1286,25 +1286,7 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
 	int i, j;
 	int ret;
 
-	switch (camss->res->version) {
-	case CAMSS_8x16:
-		vfe->ops = &vfe_ops_4_1;
-		break;
-	case CAMSS_8x96:
-		vfe->ops = &vfe_ops_4_7;
-		break;
-	case CAMSS_660:
-		vfe->ops = &vfe_ops_4_8;
-		break;
-	case CAMSS_845:
-		vfe->ops = &vfe_ops_170;
-		break;
-	case CAMSS_8250:
-		vfe->ops = &vfe_ops_480;
-		break;
-	default:
-		return -EINVAL;
-	}
+	vfe->ops = res->ops;
 
 	if (!res->line_num)
 		return -EINVAL;
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 54886a2a449b0..12131d9ea7ca8 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -42,7 +42,8 @@ static const struct camss_subdev_resources csiphy_res_8x16[] = {
 				{ 0 },
 				{ 100000000, 200000000 } },
 		.reg = { "csiphy0", "csiphy0_clk_mux" },
-		.interrupt = { "csiphy0" }
+		.interrupt = { "csiphy0" },
+		.ops = &csiphy_ops_2ph_1_0
 	},
 
 	/* CSIPHY1 */
@@ -54,7 +55,8 @@ static const struct camss_subdev_resources csiphy_res_8x16[] = {
 				{ 0 },
 				{ 100000000, 200000000 } },
 		.reg = { "csiphy1", "csiphy1_clk_mux" },
-		.interrupt = { "csiphy1" }
+		.interrupt = { "csiphy1" },
+		.ops = &csiphy_ops_2ph_1_0
 	}
 };
 
@@ -73,7 +75,8 @@ static const struct camss_subdev_resources csid_res_8x16[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid0" },
-		.interrupt = { "csid0" }
+		.interrupt = { "csid0" },
+		.ops = &csid_ops_4_1,
 	},
 
 	/* CSID1 */
@@ -90,7 +93,8 @@ static const struct camss_subdev_resources csid_res_8x16[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid1" },
-		.interrupt = { "csid1" }
+		.interrupt = { "csid1" },
+		.ops = &csid_ops_4_1,
 	},
 };
 
@@ -125,6 +129,7 @@ static const struct camss_subdev_resources vfe_res_8x16[] = {
 		.reg = { "vfe0" },
 		.interrupt = { "vfe0" },
 		.line_num = VFE_LINE_NUM_GEN1,
+		.ops = &vfe_ops_4_1
 	}
 };
 
@@ -138,7 +143,8 @@ static const struct camss_subdev_resources csiphy_res_8x96[] = {
 				{ 0 },
 				{ 100000000, 200000000, 266666667 } },
 		.reg = { "csiphy0", "csiphy0_clk_mux" },
-		.interrupt = { "csiphy0" }
+		.interrupt = { "csiphy0" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 
 	/* CSIPHY1 */
@@ -150,7 +156,8 @@ static const struct camss_subdev_resources csiphy_res_8x96[] = {
 				{ 0 },
 				{ 100000000, 200000000, 266666667 } },
 		.reg = { "csiphy1", "csiphy1_clk_mux" },
-		.interrupt = { "csiphy1" }
+		.interrupt = { "csiphy1" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 
 	/* CSIPHY2 */
@@ -162,7 +169,8 @@ static const struct camss_subdev_resources csiphy_res_8x96[] = {
 				{ 0 },
 				{ 100000000, 200000000, 266666667 } },
 		.reg = { "csiphy2", "csiphy2_clk_mux" },
-		.interrupt = { "csiphy2" }
+		.interrupt = { "csiphy2" },
+		.ops = &csiphy_ops_3ph_1_0
 	}
 };
 
@@ -181,7 +189,8 @@ static const struct camss_subdev_resources csid_res_8x96[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid0" },
-		.interrupt = { "csid0" }
+		.interrupt = { "csid0" },
+		.ops = &csid_ops_4_7,
 	},
 
 	/* CSID1 */
@@ -198,7 +207,8 @@ static const struct camss_subdev_resources csid_res_8x96[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid1" },
-		.interrupt = { "csid1" }
+		.interrupt = { "csid1" },
+		.ops = &csid_ops_4_7,
 	},
 
 	/* CSID2 */
@@ -215,7 +225,8 @@ static const struct camss_subdev_resources csid_res_8x96[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid2" },
-		.interrupt = { "csid2" }
+		.interrupt = { "csid2" },
+		.ops = &csid_ops_4_7,
 	},
 
 	/* CSID3 */
@@ -232,7 +243,8 @@ static const struct camss_subdev_resources csid_res_8x96[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid3" },
-		.interrupt = { "csid3" }
+		.interrupt = { "csid3" },
+		.ops = &csid_ops_4_7,
 	}
 };
 
@@ -266,6 +278,7 @@ static const struct camss_subdev_resources vfe_res_8x96[] = {
 		.reg = { "vfe0" },
 		.interrupt = { "vfe0" },
 		.line_num = VFE_LINE_NUM_GEN1,
+		.ops = &vfe_ops_4_7
 	},
 
 	/* VFE1 */
@@ -285,6 +298,7 @@ static const struct camss_subdev_resources vfe_res_8x96[] = {
 		.reg = { "vfe1" },
 		.interrupt = { "vfe1" },
 		.line_num = VFE_LINE_NUM_GEN1,
+		.ops = &vfe_ops_4_7
 	}
 };
 
@@ -300,7 +314,8 @@ static const struct camss_subdev_resources csiphy_res_660[] = {
 				{ 100000000, 200000000, 269333333 },
 				{ 0 } },
 		.reg = { "csiphy0", "csiphy0_clk_mux" },
-		.interrupt = { "csiphy0" }
+		.interrupt = { "csiphy0" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 
 	/* CSIPHY1 */
@@ -314,7 +329,8 @@ static const struct camss_subdev_resources csiphy_res_660[] = {
 				{ 100000000, 200000000, 269333333 },
 				{ 0 } },
 		.reg = { "csiphy1", "csiphy1_clk_mux" },
-		.interrupt = { "csiphy1" }
+		.interrupt = { "csiphy1" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 
 	/* CSIPHY2 */
@@ -328,7 +344,8 @@ static const struct camss_subdev_resources csiphy_res_660[] = {
 				{ 100000000, 200000000, 269333333 },
 				{ 0 } },
 		.reg = { "csiphy2", "csiphy2_clk_mux" },
-		.interrupt = { "csiphy2" }
+		.interrupt = { "csiphy2" },
+		.ops = &csiphy_ops_3ph_1_0
 	}
 };
 
@@ -350,7 +367,8 @@ static const struct camss_subdev_resources csid_res_660[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid0" },
-		.interrupt = { "csid0" }
+		.interrupt = { "csid0" },
+		.ops = &csid_ops_4_7,
 	},
 
 	/* CSID1 */
@@ -370,7 +388,8 @@ static const struct camss_subdev_resources csid_res_660[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid1" },
-		.interrupt = { "csid1" }
+		.interrupt = { "csid1" },
+		.ops = &csid_ops_4_7,
 	},
 
 	/* CSID2 */
@@ -390,7 +409,8 @@ static const struct camss_subdev_resources csid_res_660[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid2" },
-		.interrupt = { "csid2" }
+		.interrupt = { "csid2" },
+		.ops = &csid_ops_4_7,
 	},
 
 	/* CSID3 */
@@ -410,7 +430,8 @@ static const struct camss_subdev_resources csid_res_660[] = {
 				{ 0 },
 				{ 0 } },
 		.reg = { "csid3" },
-		.interrupt = { "csid3" }
+		.interrupt = { "csid3" },
+		.ops = &csid_ops_4_7,
 	}
 };
 
@@ -447,6 +468,7 @@ static const struct camss_subdev_resources vfe_res_660[] = {
 		.reg = { "vfe0" },
 		.interrupt = { "vfe0" },
 		.line_num = VFE_LINE_NUM_GEN1,
+		.ops = &vfe_ops_4_8
 	},
 
 	/* VFE1 */
@@ -469,6 +491,7 @@ static const struct camss_subdev_resources vfe_res_660[] = {
 		.reg = { "vfe1" },
 		.interrupt = { "vfe1" },
 		.line_num = VFE_LINE_NUM_GEN1,
+		.ops = &vfe_ops_4_8
 	}
 };
 
@@ -488,7 +511,8 @@ static const struct camss_subdev_resources csiphy_res_845[] = {
 				{ 0 },
 				{ 19200000, 240000000, 269333333 } },
 		.reg = { "csiphy0" },
-		.interrupt = { "csiphy0" }
+		.interrupt = { "csiphy0" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 
 	/* CSIPHY1 */
@@ -506,7 +530,8 @@ static const struct camss_subdev_resources csiphy_res_845[] = {
 				{ 0 },
 				{ 19200000, 240000000, 269333333 } },
 		.reg = { "csiphy1" },
-		.interrupt = { "csiphy1" }
+		.interrupt = { "csiphy1" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 
 	/* CSIPHY2 */
@@ -524,7 +549,8 @@ static const struct camss_subdev_resources csiphy_res_845[] = {
 				{ 0 },
 				{ 19200000, 240000000, 269333333 } },
 		.reg = { "csiphy2" },
-		.interrupt = { "csiphy2" }
+		.interrupt = { "csiphy2" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 
 	/* CSIPHY3 */
@@ -542,7 +568,8 @@ static const struct camss_subdev_resources csiphy_res_845[] = {
 				{ 0 },
 				{ 19200000, 240000000, 269333333 } },
 		.reg = { "csiphy3" },
-		.interrupt = { "csiphy3" }
+		.interrupt = { "csiphy3" },
+		.ops = &csiphy_ops_3ph_1_0
 	}
 };
 
@@ -564,7 +591,8 @@ static const struct camss_subdev_resources csid_res_845[] = {
 				{ 19200000, 75000000, 384000000, 538666667 },
 				{ 384000000 } },
 		.reg = { "csid0" },
-		.interrupt = { "csid0" }
+		.interrupt = { "csid0" },
+		.ops = &csid_ops_gen2
 	},
 
 	/* CSID1 */
@@ -584,7 +612,8 @@ static const struct camss_subdev_resources csid_res_845[] = {
 				{ 19200000, 75000000, 384000000, 538666667 },
 				{ 384000000 } },
 		.reg = { "csid1" },
-		.interrupt = { "csid1" }
+		.interrupt = { "csid1" },
+		.ops = &csid_ops_gen2
 	},
 
 	/* CSID2 */
@@ -604,7 +633,8 @@ static const struct camss_subdev_resources csid_res_845[] = {
 				{ 19200000, 75000000, 384000000, 538666667 },
 				{ 384000000 } },
 		.reg = { "csid2" },
-		.interrupt = { "csid2" }
+		.interrupt = { "csid2" },
+		.ops = &csid_ops_gen2
 	}
 };
 
@@ -628,6 +658,7 @@ static const struct camss_subdev_resources vfe_res_845[] = {
 		.reg = { "vfe0" },
 		.interrupt = { "vfe0" },
 		.line_num = VFE_LINE_NUM_GEN2,
+		.ops = &vfe_ops_170
 	},
 
 	/* VFE1 */
@@ -649,6 +680,7 @@ static const struct camss_subdev_resources vfe_res_845[] = {
 		.reg = { "vfe1" },
 		.interrupt = { "vfe1" },
 		.line_num = VFE_LINE_NUM_GEN2,
+		.ops = &vfe_ops_170
 	},
 
 	/* VFE-lite */
@@ -669,6 +701,7 @@ static const struct camss_subdev_resources vfe_res_845[] = {
 		.reg = { "vfe_lite" },
 		.interrupt = { "vfe_lite" },
 		.line_num = VFE_LINE_NUM_GEN2,
+		.ops = &vfe_ops_170
 	}
 };
 
@@ -680,7 +713,8 @@ static const struct camss_subdev_resources csiphy_res_8250[] = {
 		.clock_rate = { { 400000000 },
 				{ 300000000 } },
 		.reg = { "csiphy0" },
-		.interrupt = { "csiphy0" }
+		.interrupt = { "csiphy0" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 	/* CSIPHY1 */
 	{
@@ -689,7 +723,8 @@ static const struct camss_subdev_resources csiphy_res_8250[] = {
 		.clock_rate = { { 400000000 },
 				{ 300000000 } },
 		.reg = { "csiphy1" },
-		.interrupt = { "csiphy1" }
+		.interrupt = { "csiphy1" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 	/* CSIPHY2 */
 	{
@@ -698,7 +733,8 @@ static const struct camss_subdev_resources csiphy_res_8250[] = {
 		.clock_rate = { { 400000000 },
 				{ 300000000 } },
 		.reg = { "csiphy2" },
-		.interrupt = { "csiphy2" }
+		.interrupt = { "csiphy2" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 	/* CSIPHY3 */
 	{
@@ -707,7 +743,8 @@ static const struct camss_subdev_resources csiphy_res_8250[] = {
 		.clock_rate = { { 400000000 },
 				{ 300000000 } },
 		.reg = { "csiphy3" },
-		.interrupt = { "csiphy3" }
+		.interrupt = { "csiphy3" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 	/* CSIPHY4 */
 	{
@@ -716,7 +753,8 @@ static const struct camss_subdev_resources csiphy_res_8250[] = {
 		.clock_rate = { { 400000000 },
 				{ 300000000 } },
 		.reg = { "csiphy4" },
-		.interrupt = { "csiphy4" }
+		.interrupt = { "csiphy4" },
+		.ops = &csiphy_ops_3ph_1_0
 	},
 	/* CSIPHY5 */
 	{
@@ -725,7 +763,8 @@ static const struct camss_subdev_resources csiphy_res_8250[] = {
 		.clock_rate = { { 400000000 },
 				{ 300000000 } },
 		.reg = { "csiphy5" },
-		.interrupt = { "csiphy5" }
+		.interrupt = { "csiphy5" },
+		.ops = &csiphy_ops_3ph_1_0
 	}
 };
 
@@ -740,7 +779,8 @@ static const struct camss_subdev_resources csid_res_8250[] = {
 				{ 100000000, 200000000, 300000000, 400000000 },
 				{ 0 } },
 		.reg = { "csid0" },
-		.interrupt = { "csid0" }
+		.interrupt = { "csid0" },
+		.ops = &csid_ops_gen2
 	},
 	/* CSID1 */
 	{
@@ -752,7 +792,8 @@ static const struct camss_subdev_resources csid_res_8250[] = {
 				{ 100000000, 200000000, 300000000, 400000000 },
 				{ 0 } },
 		.reg = { "csid1" },
-		.interrupt = { "csid1" }
+		.interrupt = { "csid1" },
+		.ops = &csid_ops_gen2
 	},
 	/* CSID2 */
 	{
@@ -763,7 +804,8 @@ static const struct camss_subdev_resources csid_res_8250[] = {
 				{ 400000000, 480000000 },
 				{ 0 } },
 		.reg = { "csid2" },
-		.interrupt = { "csid2" }
+		.interrupt = { "csid2" },
+		.ops = &csid_ops_gen2
 	},
 	/* CSID3 */
 	{
@@ -774,7 +816,8 @@ static const struct camss_subdev_resources csid_res_8250[] = {
 				{ 400000000, 480000000 },
 				{ 0 } },
 		.reg = { "csid3" },
-		.interrupt = { "csid3" }
+		.interrupt = { "csid3" },
+		.ops = &csid_ops_gen2
 	}
 };
 
@@ -797,6 +840,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
 		.reg = { "vfe0" },
 		.interrupt = { "vfe0" },
 		.line_num = 4,
+		.ops = &vfe_ops_480
 	},
 	/* VFE1 */
 	{
@@ -816,6 +860,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
 		.reg = { "vfe1" },
 		.interrupt = { "vfe1" },
 		.line_num = 4,
+		.ops = &vfe_ops_480
 	},
 	/* VFE2 (lite) */
 	{
@@ -834,6 +879,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
 		.reg = { "vfe_lite0" },
 		.interrupt = { "vfe_lite0" },
 		.line_num = 4,
+		.ops = &vfe_ops_480
 	},
 	/* VFE3 (lite) */
 	{
@@ -852,6 +898,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
 		.reg = { "vfe_lite1" },
 		.interrupt = { "vfe_lite1" },
 		.line_num = 4,
+		.ops = &vfe_ops_480
 	},
 };
 
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index fc02aa84a5dd7..8acad7321c09d 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -49,6 +49,7 @@ struct camss_subdev_resources {
 	char *reg[CAMSS_RES_MAX];
 	char *interrupt[CAMSS_RES_MAX];
 	u8 line_num;
+	const void *ops;
 };
 
 struct icc_bw_tbl {
-- 
2.42.0