clk: mediatek: Add SMI LARBs reset for MT8188

SMI LARBs require reset functions when MTCMOS powers on or off.
Add reset platform data for SMI LARBs in the image, camera and IPE
subsystems.

Signed-off-by: Friday Yang <friday.yang@mediatek.com>
Link: https://lore.kernel.org/r/20250221075058.14180-3-friday.yang@mediatek.com
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

3 files changed, 49 insertions, 0 deletions

diff --git a/drivers/clk/mediatek/clk-mt8188-cam.c b/drivers/clk/mediatek/clk-mt8188-cam.c
index 7500bd25387f..9b029fdd584e 100644
--- a/drivers/clk/mediatek/clk-mt8188-cam.c
+++ b/drivers/clk/mediatek/clk-mt8188-cam.c
@@ -20,6 +20,8 @@ static const struct mtk_gate_regs cam_cg_regs = {
 #define GATE_CAM(_id, _name, _parent, _shift)			\
 	GATE_MTK(_id, _name, _parent, &cam_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
 
+#define CAM_SYS_SMI_LARB_RST_OFF	(0xA0)
+
 static const struct mtk_gate cam_main_clks[] = {
 	GATE_CAM(CLK_CAM_MAIN_LARB13, "cam_main_larb13", "top_cam", 0),
 	GATE_CAM(CLK_CAM_MAIN_LARB14, "cam_main_larb14", "top_cam", 1),
@@ -72,6 +74,17 @@ static const struct mtk_gate cam_yuvb_clks[] = {
 	GATE_CAM(CLK_CAM_YUVB_CAMTG, "cam_yuvb_camtg", "top_cam", 2),
 };
 
+/* Reset for SMI larb 16a/16b/17a/17b */
+static u16 cam_sys_rst_ofs[] = {
+	CAM_SYS_SMI_LARB_RST_OFF,
+};
+
+static const struct mtk_clk_rst_desc cam_sys_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = cam_sys_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(cam_sys_rst_ofs),
+};
+
 static const struct mtk_clk_desc cam_main_desc = {
 	.clks = cam_main_clks,
 	.num_clks = ARRAY_SIZE(cam_main_clks),
@@ -80,21 +93,25 @@ static const struct mtk_clk_desc cam_main_desc = {
 static const struct mtk_clk_desc cam_rawa_desc = {
 	.clks = cam_rawa_clks,
 	.num_clks = ARRAY_SIZE(cam_rawa_clks),
+	.rst_desc = &cam_sys_rst_desc,
 };
 
 static const struct mtk_clk_desc cam_rawb_desc = {
 	.clks = cam_rawb_clks,
 	.num_clks = ARRAY_SIZE(cam_rawb_clks),
+	.rst_desc = &cam_sys_rst_desc,
 };
 
 static const struct mtk_clk_desc cam_yuva_desc = {
 	.clks = cam_yuva_clks,
 	.num_clks = ARRAY_SIZE(cam_yuva_clks),
+	.rst_desc = &cam_sys_rst_desc,
 };
 
 static const struct mtk_clk_desc cam_yuvb_desc = {
 	.clks = cam_yuvb_clks,
 	.num_clks = ARRAY_SIZE(cam_yuvb_clks),
+	.rst_desc = &cam_sys_rst_desc,
 };
 
 static const struct of_device_id of_match_clk_mt8188_cam[] = {
diff --git a/drivers/clk/mediatek/clk-mt8188-img.c b/drivers/clk/mediatek/clk-mt8188-img.c
index cb2fbd4136b9..d44bfbd8308a 100644
--- a/drivers/clk/mediatek/clk-mt8188-img.c
+++ b/drivers/clk/mediatek/clk-mt8188-img.c
@@ -20,6 +20,8 @@ static const struct mtk_gate_regs imgsys_cg_regs = {
 #define GATE_IMGSYS(_id, _name, _parent, _shift)			\
 	GATE_MTK(_id, _name, _parent, &imgsys_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
 
+#define IMG_SYS_SMI_LARB_RST_OFF	(0xC)
+
 static const struct mtk_gate imgsys_main_clks[] = {
 	GATE_IMGSYS(CLK_IMGSYS_MAIN_LARB9, "imgsys_main_larb9", "top_img", 0),
 	GATE_IMGSYS(CLK_IMGSYS_MAIN_TRAW0, "imgsys_main_traw0", "top_img", 1),
@@ -58,6 +60,17 @@ static const struct mtk_gate imgsys1_dip_nr_clks[] = {
 	GATE_IMGSYS(CLK_IMGSYS1_DIP_NR_DIP_NR, "imgsys1_dip_nr_dip_nr", "top_img", 1),
 };
 
+/* Reset for SMI larb 10/11a/11b/11c/15 */
+static u16 img_sys_rst_ofs[] = {
+	IMG_SYS_SMI_LARB_RST_OFF,
+};
+
+static const struct mtk_clk_rst_desc img_sys_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = img_sys_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(img_sys_rst_ofs),
+};
+
 static const struct mtk_clk_desc imgsys_main_desc = {
 	.clks = imgsys_main_clks,
 	.num_clks = ARRAY_SIZE(imgsys_main_clks),
@@ -66,26 +79,31 @@ static const struct mtk_clk_desc imgsys_main_desc = {
 static const struct mtk_clk_desc imgsys_wpe1_desc = {
 	.clks = imgsys_wpe1_clks,
 	.num_clks = ARRAY_SIZE(imgsys_wpe1_clks),
+	.rst_desc = &img_sys_rst_desc,
 };
 
 static const struct mtk_clk_desc imgsys_wpe2_desc = {
 	.clks = imgsys_wpe2_clks,
 	.num_clks = ARRAY_SIZE(imgsys_wpe2_clks),
+	.rst_desc = &img_sys_rst_desc,
 };
 
 static const struct mtk_clk_desc imgsys_wpe3_desc = {
 	.clks = imgsys_wpe3_clks,
 	.num_clks = ARRAY_SIZE(imgsys_wpe3_clks),
+	.rst_desc = &img_sys_rst_desc,
 };
 
 static const struct mtk_clk_desc imgsys1_dip_top_desc = {
 	.clks = imgsys1_dip_top_clks,
 	.num_clks = ARRAY_SIZE(imgsys1_dip_top_clks),
+	.rst_desc = &img_sys_rst_desc,
 };
 
 static const struct mtk_clk_desc imgsys1_dip_nr_desc = {
 	.clks = imgsys1_dip_nr_clks,
 	.num_clks = ARRAY_SIZE(imgsys1_dip_nr_clks),
+	.rst_desc = &img_sys_rst_desc,
 };
 
 static const struct of_device_id of_match_clk_mt8188_imgsys_main[] = {
diff --git a/drivers/clk/mediatek/clk-mt8188-ipe.c b/drivers/clk/mediatek/clk-mt8188-ipe.c
index 8f1933b71e28..70a011c1f9ce 100644
--- a/drivers/clk/mediatek/clk-mt8188-ipe.c
+++ b/drivers/clk/mediatek/clk-mt8188-ipe.c
@@ -20,6 +20,8 @@ static const struct mtk_gate_regs ipe_cg_regs = {
 #define GATE_IPE(_id, _name, _parent, _shift)			\
 	GATE_MTK(_id, _name, _parent, &ipe_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
 
+#define IPE_SYS_SMI_LARB_RST_OFF	(0xC)
+
 static const struct mtk_gate ipe_clks[] = {
 	GATE_IPE(CLK_IPE_DPE, "ipe_dpe", "top_ipe", 0),
 	GATE_IPE(CLK_IPE_FDVT, "ipe_fdvt", "top_ipe", 1),
@@ -28,9 +30,21 @@ static const struct mtk_gate ipe_clks[] = {
 	GATE_IPE(CLK_IPE_SMI_LARB12, "ipe_smi_larb12", "top_ipe", 4),
 };
 
+/* Reset for SMI larb 12 */
+static u16 ipe_sys_rst_ofs[] = {
+	IPE_SYS_SMI_LARB_RST_OFF,
+};
+
+static const struct mtk_clk_rst_desc ipe_sys_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = ipe_sys_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(ipe_sys_rst_ofs),
+};
+
 static const struct mtk_clk_desc ipe_desc = {
 	.clks = ipe_clks,
 	.num_clks = ARRAY_SIZE(ipe_clks),
+	.rst_desc = &ipe_sys_rst_desc,
 };
 
 static const struct of_device_id of_match_clk_mt8188_ipe[] = {