[PATCH v11 3/5] soc: mediatek: Move mt8173 MMSYS to platform driver

Enric Balletbo i Serra
2020-03-02T11:02:19Z

From: Matthias Brugger <mbrugger@suse.com>

There is no strong reason for this to use CLK_OF_DECLARE instead of
being a platform driver. Plus, this driver provides clocks but also
a shared register space for the mediatek-drm and the mediatek-mdp
driver. So move to drivers/soc/mediatek as a platform driver.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
---

Changes in v11: None
Changes in v10:
- Renamed to be generic mtk-mmsys
- Add driver data support to be able to support diferent SoCs

Changes in v9:
- Move mmsys to drivers/soc/mediatek (CK)

Changes in v8:
- Be a builtin_platform_driver like other mediatek mmsys drivers.

Changes in v7:
- Free clk_data->clks as well
- Get rid of private data structure

drivers/clk/mediatek/clk-mt8173.c | 104 --------------------
drivers/soc/mediatek/Kconfig | 7 ++
drivers/soc/mediatek/Makefile | 1 +
drivers/soc/mediatek/mtk-mmsys.c | 154 ++++++++++++++++++++++++++++++
4 files changed, 162 insertions(+), 104 deletions(-)
create mode 100644 drivers/soc/mediatek/mtk-mmsys.c

diff --git a/drivers/clk/mediatek/clk-mt8173.c b/drivers/clk/mediatek/clk-mt8173.c
index 537a7f49b0f7..8f898ac476c0 100644
--- a/drivers/clk/mediatek/clk-mt8173.c
+++ b/drivers/clk/mediatek/clk-mt8173.c
@@ -753,93 +753,6 @@ static const struct mtk_gate img_clks[] __initconst = {
GATE_IMG(CLK_IMG_FD, "img_fd", "mm_sel", 11),
};

-static const struct mtk_gate_regs mm0_cg_regs __initconst = {
- .set_ofs = 0x0104,
- .clr_ofs = 0x0108,
- .sta_ofs = 0x0100,
-};
-
-static const struct mtk_gate_regs mm1_cg_regs __initconst = {
- .set_ofs = 0x0114,
- .clr_ofs = 0x0118,
- .sta_ofs = 0x0110,
-};
-
-#define GATE_MM0(_id, _name, _parent, _shift) { \
- .id = _id, \
- .name = _name, \
- .parent_name = _parent, \
- .regs = &mm0_cg_regs, \
- .shift = _shift, \
- .ops = &mtk_clk_gate_ops_setclr, \
- }
-
-#define GATE_MM1(_id, _name, _parent, _shift) { \
- .id = _id, \
- .name = _name, \
- .parent_name = _parent, \
- .regs = &mm1_cg_regs, \
- .shift = _shift, \
- .ops = &mtk_clk_gate_ops_setclr, \
- }
-
-static const struct mtk_gate mm_clks[] __initconst = {
- /* MM0 */
- GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "mm_sel", 0),
- GATE_MM0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1),
- GATE_MM0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 2),
- GATE_MM0(CLK_MM_MDP_RDMA0, "mm_mdp_rdma0", "mm_sel", 3),
- GATE_MM0(CLK_MM_MDP_RDMA1, "mm_mdp_rdma1", "mm_sel", 4),
- GATE_MM0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 5),
- GATE_MM0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 6),
- GATE_MM0(CLK_MM_MDP_RSZ2, "mm_mdp_rsz2", "mm_sel", 7),
- GATE_MM0(CLK_MM_MDP_TDSHP0, "mm_mdp_tdshp0", "mm_sel", 8),
- GATE_MM0(CLK_MM_MDP_TDSHP1, "mm_mdp_tdshp1", "mm_sel", 9),
- GATE_MM0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11),
- GATE_MM0(CLK_MM_MDP_WROT0, "mm_mdp_wrot0", "mm_sel", 12),
- GATE_MM0(CLK_MM_MDP_WROT1, "mm_mdp_wrot1", "mm_sel", 13),
- GATE_MM0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 14),
- GATE_MM0(CLK_MM_MUTEX_32K, "mm_mutex_32k", "rtc_sel", 15),
- GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "mm_sel", 16),
- GATE_MM0(CLK_MM_DISP_OVL1, "mm_disp_ovl1", "mm_sel", 17),
- GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "mm_sel", 18),
- GATE_MM0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 19),
- GATE_MM0(CLK_MM_DISP_RDMA2, "mm_disp_rdma2", "mm_sel", 20),
- GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "mm_sel", 21),
- GATE_MM0(CLK_MM_DISP_WDMA1, "mm_disp_wdma1", "mm_sel", 22),
- GATE_MM0(CLK_MM_DISP_COLOR0, "mm_disp_color0", "mm_sel", 23),
- GATE_MM0(CLK_MM_DISP_COLOR1, "mm_disp_color1", "mm_sel", 24),
- GATE_MM0(CLK_MM_DISP_AAL, "mm_disp_aal", "mm_sel", 25),
- GATE_MM0(CLK_MM_DISP_GAMMA, "mm_disp_gamma", "mm_sel", 26),
- GATE_MM0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 27),
- GATE_MM0(CLK_MM_DISP_SPLIT0, "mm_disp_split0", "mm_sel", 28),
- GATE_MM0(CLK_MM_DISP_SPLIT1, "mm_disp_split1", "mm_sel", 29),
- GATE_MM0(CLK_MM_DISP_MERGE, "mm_disp_merge", "mm_sel", 30),
- GATE_MM0(CLK_MM_DISP_OD, "mm_disp_od", "mm_sel", 31),
- /* MM1 */
- GATE_MM1(CLK_MM_DISP_PWM0MM, "mm_disp_pwm0mm", "mm_sel", 0),
- GATE_MM1(CLK_MM_DISP_PWM026M, "mm_disp_pwm026m", "pwm_sel", 1),
- GATE_MM1(CLK_MM_DISP_PWM1MM, "mm_disp_pwm1mm", "mm_sel", 2),
- GATE_MM1(CLK_MM_DISP_PWM126M, "mm_disp_pwm126m", "pwm_sel", 3),
- GATE_MM1(CLK_MM_DSI0_ENGINE, "mm_dsi0_engine", "mm_sel", 4),
- GATE_MM1(CLK_MM_DSI0_DIGITAL, "mm_dsi0_digital", "dsi0_dig", 5),
- GATE_MM1(CLK_MM_DSI1_ENGINE, "mm_dsi1_engine", "mm_sel", 6),
- GATE_MM1(CLK_MM_DSI1_DIGITAL, "mm_dsi1_digital", "dsi1_dig", 7),
- GATE_MM1(CLK_MM_DPI_PIXEL, "mm_dpi_pixel", "dpi0_sel", 8),
- GATE_MM1(CLK_MM_DPI_ENGINE, "mm_dpi_engine", "mm_sel", 9),
- GATE_MM1(CLK_MM_DPI1_PIXEL, "mm_dpi1_pixel", "lvds_pxl", 10),
- GATE_MM1(CLK_MM_DPI1_ENGINE, "mm_dpi1_engine", "mm_sel", 11),
- GATE_MM1(CLK_MM_HDMI_PIXEL, "mm_hdmi_pixel", "dpi0_sel", 12),
- GATE_MM1(CLK_MM_HDMI_PLLCK, "mm_hdmi_pllck", "hdmi_sel", 13),
- GATE_MM1(CLK_MM_HDMI_AUDIO, "mm_hdmi_audio", "apll1", 14),
- GATE_MM1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll2", 15),
- GATE_MM1(CLK_MM_LVDS_PIXEL, "mm_lvds_pixel", "lvds_pxl", 16),
- GATE_MM1(CLK_MM_LVDS_CTS, "mm_lvds_cts", "lvds_cts", 17),
- GATE_MM1(CLK_MM_SMI_LARB4, "mm_smi_larb4", "mm_sel", 18),
- GATE_MM1(CLK_MM_HDMI_HDCP, "mm_hdmi_hdcp", "hdcp_sel", 19),
- GATE_MM1(CLK_MM_HDMI_HDCP24M, "mm_hdmi_hdcp24m", "hdcp_24m_sel", 20),
-};
-
static const struct mtk_gate_regs vdec0_cg_regs __initconst = {
.set_ofs = 0x0000,
.clr_ofs = 0x0004,
@@ -1144,23 +1057,6 @@ static void __init mtk_imgsys_init(struct device_node *node)
}
CLK_OF_DECLARE(mtk_imgsys, "mediatek,mt8173-imgsys", mtk_imgsys_init);

-static void __init mtk_mmsys_init(struct device_node *node)
-{
- struct clk_onecell_data *clk_data;
- int r;
-
- clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK);
-
- mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks),
- clk_data);
-
- r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
- if (r)
- pr_err("%s(): could not register clock provider: %d\n",
- __func__, r);
-}
-CLK_OF_DECLARE(mtk_mmsys, "mediatek,mt8173-mmsys", mtk_mmsys_init);
-
static void __init mtk_vdecsys_init(struct device_node *node)
{
struct clk_onecell_data *clk_data;
diff --git a/drivers/soc/mediatek/Kconfig b/drivers/soc/mediatek/Kconfig
index 2114b563478c..7a156944d50e 100644
--- a/drivers/soc/mediatek/Kconfig
+++ b/drivers/soc/mediatek/Kconfig
@@ -44,4 +44,11 @@ config MTK_SCPSYS
Say yes here to add support for the MediaTek SCPSYS power domain
driver.

+config MTK_MMSYS
+ bool "MediaTek MMSYS Support"
+ depends on COMMON_CLK_MT8173
+ help
+ Say yes here to add support for the MediaTek Multimedia
+ Subsystem (MMSYS).
+
endmenu
diff --git a/drivers/soc/mediatek/Makefile b/drivers/soc/mediatek/Makefile
index b01733074ad6..01f9f873634a 100644
--- a/drivers/soc/mediatek/Makefile
+++ b/drivers/soc/mediatek/Makefile
@@ -3,3 +3,4 @@ obj-$(CONFIG_MTK_CMDQ) += mtk-cmdq-helper.o
obj-$(CONFIG_MTK_INFRACFG) += mtk-infracfg.o
obj-$(CONFIG_MTK_PMIC_WRAP) += mtk-pmic-wrap.o
obj-$(CONFIG_MTK_SCPSYS) += mtk-scpsys.o
+obj-$(CONFIG_MTK_MMSYS) += mtk-mmsys.o
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
new file mode 100644
index 000000000000..473cdf732fb5
--- /dev/null
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: James Liao <jamesjj.liao@mediatek.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "../../clk/mediatek/clk-gate.h"
+#include "../../clk/mediatek/clk-mtk.h"
+
+#include <dt-bindings/clock/mt8173-clk.h>
+
+static const struct mtk_gate_regs mm0_cg_regs = {
+ .set_ofs = 0x0104,
+ .clr_ofs = 0x0108,
+ .sta_ofs = 0x0100,
+};
+
+static const struct mtk_gate_regs mm1_cg_regs = {
+ .set_ofs = 0x0114,
+ .clr_ofs = 0x0118,
+ .sta_ofs = 0x0110,
+};
+
+#define GATE_MM0(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &mm0_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_setclr, \
+ }
+
+#define GATE_MM1(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &mm1_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_setclr, \
+ }
+
+static const struct mtk_gate mt8173_mm_clks[] = {
+ /* MM0 */
+ GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "mm_sel", 0),
+ GATE_MM0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1),
+ GATE_MM0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 2),
+ GATE_MM0(CLK_MM_MDP_RDMA0, "mm_mdp_rdma0", "mm_sel", 3),
+ GATE_MM0(CLK_MM_MDP_RDMA1, "mm_mdp_rdma1", "mm_sel", 4),
+ GATE_MM0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 5),
+ GATE_MM0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 6),
+ GATE_MM0(CLK_MM_MDP_RSZ2, "mm_mdp_rsz2", "mm_sel", 7),
+ GATE_MM0(CLK_MM_MDP_TDSHP0, "mm_mdp_tdshp0", "mm_sel", 8),
+ GATE_MM0(CLK_MM_MDP_TDSHP1, "mm_mdp_tdshp1", "mm_sel", 9),
+ GATE_MM0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11),
+ GATE_MM0(CLK_MM_MDP_WROT0, "mm_mdp_wrot0", "mm_sel", 12),
+ GATE_MM0(CLK_MM_MDP_WROT1, "mm_mdp_wrot1", "mm_sel", 13),
+ GATE_MM0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 14),
+ GATE_MM0(CLK_MM_MUTEX_32K, "mm_mutex_32k", "rtc_sel", 15),
+ GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "mm_sel", 16),
+ GATE_MM0(CLK_MM_DISP_OVL1, "mm_disp_ovl1", "mm_sel", 17),
+ GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "mm_sel", 18),
+ GATE_MM0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 19),
+ GATE_MM0(CLK_MM_DISP_RDMA2, "mm_disp_rdma2", "mm_sel", 20),
+ GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "mm_sel", 21),
+ GATE_MM0(CLK_MM_DISP_WDMA1, "mm_disp_wdma1", "mm_sel", 22),
+ GATE_MM0(CLK_MM_DISP_COLOR0, "mm_disp_color0", "mm_sel", 23),
+ GATE_MM0(CLK_MM_DISP_COLOR1, "mm_disp_color1", "mm_sel", 24),
+ GATE_MM0(CLK_MM_DISP_AAL, "mm_disp_aal", "mm_sel", 25),
+ GATE_MM0(CLK_MM_DISP_GAMMA, "mm_disp_gamma", "mm_sel", 26),
+ GATE_MM0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 27),
+ GATE_MM0(CLK_MM_DISP_SPLIT0, "mm_disp_split0", "mm_sel", 28),
+ GATE_MM0(CLK_MM_DISP_SPLIT1, "mm_disp_split1", "mm_sel", 29),
+ GATE_MM0(CLK_MM_DISP_MERGE, "mm_disp_merge", "mm_sel", 30),
+ GATE_MM0(CLK_MM_DISP_OD, "mm_disp_od", "mm_sel", 31),
+ /* MM1 */
+ GATE_MM1(CLK_MM_DISP_PWM0MM, "mm_disp_pwm0mm", "mm_sel", 0),
+ GATE_MM1(CLK_MM_DISP_PWM026M, "mm_disp_pwm026m", "pwm_sel", 1),
+ GATE_MM1(CLK_MM_DISP_PWM1MM, "mm_disp_pwm1mm", "mm_sel", 2),
+ GATE_MM1(CLK_MM_DISP_PWM126M, "mm_disp_pwm126m", "pwm_sel", 3),
+ GATE_MM1(CLK_MM_DSI0_ENGINE, "mm_dsi0_engine", "mm_sel", 4),
+ GATE_MM1(CLK_MM_DSI0_DIGITAL, "mm_dsi0_digital", "dsi0_dig", 5),
+ GATE_MM1(CLK_MM_DSI1_ENGINE, "mm_dsi1_engine", "mm_sel", 6),
+ GATE_MM1(CLK_MM_DSI1_DIGITAL, "mm_dsi1_digital", "dsi1_dig", 7),
+ GATE_MM1(CLK_MM_DPI_PIXEL, "mm_dpi_pixel", "dpi0_sel", 8),
+ GATE_MM1(CLK_MM_DPI_ENGINE, "mm_dpi_engine", "mm_sel", 9),
+ GATE_MM1(CLK_MM_DPI1_PIXEL, "mm_dpi1_pixel", "lvds_pxl", 10),
+ GATE_MM1(CLK_MM_DPI1_ENGINE, "mm_dpi1_engine", "mm_sel", 11),
+ GATE_MM1(CLK_MM_HDMI_PIXEL, "mm_hdmi_pixel", "dpi0_sel", 12),
+ GATE_MM1(CLK_MM_HDMI_PLLCK, "mm_hdmi_pllck", "hdmi_sel", 13),
+ GATE_MM1(CLK_MM_HDMI_AUDIO, "mm_hdmi_audio", "apll1", 14),
+ GATE_MM1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll2", 15),
+ GATE_MM1(CLK_MM_LVDS_PIXEL, "mm_lvds_pixel", "lvds_pxl", 16),
+ GATE_MM1(CLK_MM_LVDS_CTS, "mm_lvds_cts", "lvds_cts", 17),
+ GATE_MM1(CLK_MM_SMI_LARB4, "mm_smi_larb4", "mm_sel", 18),
+ GATE_MM1(CLK_MM_HDMI_HDCP, "mm_hdmi_hdcp", "hdcp_sel", 19),
+ GATE_MM1(CLK_MM_HDMI_HDCP24M, "mm_hdmi_hdcp24m", "hdcp_24m_sel", 20),
+};
+
+struct mtk_mmsys_driver_data {
+ const struct mtk_gate *gates_clk;
+ int gates_num;
+};
+
+static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
+ .gates_clk = mt8173_mm_clks,
+ .gates_num = ARRAY_SIZE(mt8173_mm_clks),
+};
+
+static int mtk_mmsys_probe(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ const struct mtk_mmsys_driver_data *data;
+ struct clk_onecell_data *clk_data;
+ int ret;
+
+ clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK);
+ if (!clk_data)
+ return -ENOMEM;
+
+ data = of_device_get_match_data(&pdev->dev);
+
+ ret = mtk_clk_register_gates(node, data->gates_clk, data->gates_num,
+ clk_data);
+ if (ret)
+ return ret;
+
+ ret = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static const struct of_device_id of_match_mtk_mmsys[] = {
+ {
+ .compatible = "mediatek,mt8173-mmsys",
+ .data = &mt8173_mmsys_driver_data,
+ },
+ { }
+};
+
+static struct platform_driver mtk_mmsys_drv = {
+ .driver = {
+ .name = "mtk-mmsys",
+ .of_match_table = of_match_mtk_mmsys,
+ },
+ .probe = mtk_mmsys_probe,
+};
+
+builtin_platform_driver(mtk_mmsys_drv);
--
2.25.1