diff mbox series

[v2,18/24] clk: mediatek: Add MT8195 vdosys1 clock support

Message ID 20210820111504.350-19-chun-jie.chen@mediatek.com (mailing list archive)
State New, archived
Headers show
Series Mediatek MT8195 clock support | expand

Commit Message

Chun-Jie Chen Aug. 20, 2021, 11:14 a.m. UTC 
Add MT8195 vdosys1 clock controller which provides clock gate
control for video system.

Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
---
Integrate with mtk-mmsys driver which will pupulate device by
platform_device_register_data to start vdosys clock driver
---
 drivers/clk/mediatek/Makefile          |   2 +-
 drivers/clk/mediatek/clk-mt8195-vdo1.c | 140 +++++++++++++++++++++++++
 2 files changed, 141 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/mediatek/clk-mt8195-vdo1.c

Comments

Chen-Yu Tsai Aug. 25, 2021, 10:55 a.m. UTC | #1 
On Fri, Aug 20, 2021 at 7:31 PM Chun-Jie Chen
<chun-jie.chen@mediatek.com> wrote:
>
> Add MT8195 vdosys1 clock controller which provides clock gate
> control for video system.
>
> Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
> ---
> Integrate with mtk-mmsys driver which will pupulate device by
> platform_device_register_data to start vdosys clock driver

Same thing about the commit message. The reason behind such a design
should be documented and shared, so that other people looking at the
code will have the same context.


ChenYu
diff mbox series

Patch

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index d22731316b7c..3c8c8cdbd3ef 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -82,6 +82,6 @@  obj-$(CONFIG_COMMON_CLK_MT8192_VDECSYS) += clk-mt8192-vdec.o
 obj-$(CONFIG_COMMON_CLK_MT8192_VENCSYS) += clk-mt8192-venc.o
 obj-$(CONFIG_COMMON_CLK_MT8195) += clk-mt8195-apmixedsys.o clk-mt8195-topckgen.o clk-mt8195-peri_ao.o clk-mt8195-infra_ao.o clk-mt8195-cam.o \
 					clk-mt8195-ccu.o clk-mt8195-img.o clk-mt8195-ipe.o clk-mt8195-mfg.o clk-mt8195-scp_adsp.o \
-					clk-mt8195-vdec.o clk-mt8195-vdo0.o
+					clk-mt8195-vdec.o clk-mt8195-vdo0.o clk-mt8195-vdo1.o
 obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o
diff --git a/drivers/clk/mediatek/clk-mt8195-vdo1.c b/drivers/clk/mediatek/clk-mt8195-vdo1.c
new file mode 100644
index 000000000000..6ecff1e72443
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8195-vdo1.c
@@ -0,0 +1,140 @@ 
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+//
+// Copyright (c) 2021 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+#include <dt-bindings/clock/mt8195-clk.h>
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+static const struct mtk_gate_regs vdo1_0_cg_regs = {
+	.set_ofs = 0x104,
+	.clr_ofs = 0x108,
+	.sta_ofs = 0x100,
+};
+
+static const struct mtk_gate_regs vdo1_1_cg_regs = {
+	.set_ofs = 0x124,
+	.clr_ofs = 0x128,
+	.sta_ofs = 0x120,
+};
+
+static const struct mtk_gate_regs vdo1_2_cg_regs = {
+	.set_ofs = 0x134,
+	.clr_ofs = 0x138,
+	.sta_ofs = 0x130,
+};
+
+static const struct mtk_gate_regs vdo1_3_cg_regs = {
+	.set_ofs = 0x144,
+	.clr_ofs = 0x148,
+	.sta_ofs = 0x140,
+};
+
+#define GATE_VDO1_0(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &vdo1_0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+#define GATE_VDO1_1(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &vdo1_1_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+#define GATE_VDO1_2(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &vdo1_2_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+#define GATE_VDO1_3(_id, _name, _parent, _shift)			\
+	GATE_MTK(_id, _name, _parent, &vdo1_3_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate vdo1_clks[] = {
+	/* VDO1_0 */
+	GATE_VDO1_0(CLK_VDO1_SMI_LARB2, "vdo1_smi_larb2", "top_vpp", 0),
+	GATE_VDO1_0(CLK_VDO1_SMI_LARB3, "vdo1_smi_larb3", "top_vpp", 1),
+	GATE_VDO1_0(CLK_VDO1_GALS, "vdo1_gals", "top_vpp", 2),
+	GATE_VDO1_0(CLK_VDO1_FAKE_ENG0, "vdo1_fake_eng0", "top_vpp", 3),
+	GATE_VDO1_0(CLK_VDO1_FAKE_ENG, "vdo1_fake_eng", "top_vpp", 4),
+	GATE_VDO1_0(CLK_VDO1_MDP_RDMA0, "vdo1_mdp_rdma0", "top_vpp", 5),
+	GATE_VDO1_0(CLK_VDO1_MDP_RDMA1, "vdo1_mdp_rdma1", "top_vpp", 6),
+	GATE_VDO1_0(CLK_VDO1_MDP_RDMA2, "vdo1_mdp_rdma2", "top_vpp", 7),
+	GATE_VDO1_0(CLK_VDO1_MDP_RDMA3, "vdo1_mdp_rdma3", "top_vpp", 8),
+	GATE_VDO1_0(CLK_VDO1_VPP_MERGE0, "vdo1_vpp_merge0", "top_vpp", 9),
+	GATE_VDO1_0(CLK_VDO1_VPP_MERGE1, "vdo1_vpp_merge1", "top_vpp", 10),
+	GATE_VDO1_0(CLK_VDO1_VPP_MERGE2, "vdo1_vpp_merge2", "top_vpp", 11),
+	GATE_VDO1_0(CLK_VDO1_VPP_MERGE3, "vdo1_vpp_merge3", "top_vpp", 12),
+	GATE_VDO1_0(CLK_VDO1_VPP_MERGE4, "vdo1_vpp_merge4", "top_vpp", 13),
+	GATE_VDO1_0(CLK_VDO1_VPP2_TO_VDO1_DL_ASYNC, "vdo1_vpp2_to_vdo1_dl_async", "top_vpp", 14),
+	GATE_VDO1_0(CLK_VDO1_VPP3_TO_VDO1_DL_ASYNC, "vdo1_vpp3_to_vdo1_dl_async", "top_vpp", 15),
+	GATE_VDO1_0(CLK_VDO1_DISP_MUTEX, "vdo1_disp_mutex", "top_vpp", 16),
+	GATE_VDO1_0(CLK_VDO1_MDP_RDMA4, "vdo1_mdp_rdma4", "top_vpp", 17),
+	GATE_VDO1_0(CLK_VDO1_MDP_RDMA5, "vdo1_mdp_rdma5", "top_vpp", 18),
+	GATE_VDO1_0(CLK_VDO1_MDP_RDMA6, "vdo1_mdp_rdma6", "top_vpp", 19),
+	GATE_VDO1_0(CLK_VDO1_MDP_RDMA7, "vdo1_mdp_rdma7", "top_vpp", 20),
+	GATE_VDO1_0(CLK_VDO1_DP_INTF0_MM, "vdo1_dp_intf0_mm", "top_vpp", 21),
+	GATE_VDO1_0(CLK_VDO1_DPI0_MM, "vdo1_dpi0_mm", "top_vpp", 22),
+	GATE_VDO1_0(CLK_VDO1_DPI1_MM, "vdo1_dpi1_mm", "top_vpp", 23),
+	GATE_VDO1_0(CLK_VDO1_DISP_MONITOR, "vdo1_disp_monitor", "top_vpp", 24),
+	GATE_VDO1_0(CLK_VDO1_MERGE0_DL_ASYNC, "vdo1_merge0_dl_async", "top_vpp", 25),
+	GATE_VDO1_0(CLK_VDO1_MERGE1_DL_ASYNC, "vdo1_merge1_dl_async", "top_vpp", 26),
+	GATE_VDO1_0(CLK_VDO1_MERGE2_DL_ASYNC, "vdo1_merge2_dl_async", "top_vpp", 27),
+	GATE_VDO1_0(CLK_VDO1_MERGE3_DL_ASYNC, "vdo1_merge3_dl_async", "top_vpp", 28),
+	GATE_VDO1_0(CLK_VDO1_MERGE4_DL_ASYNC, "vdo1_merge4_dl_async", "top_vpp", 29),
+	GATE_VDO1_0(CLK_VDO1_VDO0_DSC_TO_VDO1_DL_ASYNC, "vdo1_vdo0_dsc_to_vdo1_dl_async",
+		    "top_vpp", 30),
+	GATE_VDO1_0(CLK_VDO1_VDO0_MERGE_TO_VDO1_DL_ASYNC, "vdo1_vdo0_merge_to_vdo1_dl_async",
+		    "top_vpp", 31),
+	/* VDO1_1 */
+	GATE_VDO1_1(CLK_VDO1_HDR_VDO_FE0, "vdo1_hdr_vdo_fe0", "top_vpp", 0),
+	GATE_VDO1_1(CLK_VDO1_HDR_GFX_FE0, "vdo1_hdr_gfx_fe0", "top_vpp", 1),
+	GATE_VDO1_1(CLK_VDO1_HDR_VDO_BE, "vdo1_hdr_vdo_be", "top_vpp", 2),
+	GATE_VDO1_1(CLK_VDO1_HDR_VDO_FE1, "vdo1_hdr_vdo_fe1", "top_vpp", 16),
+	GATE_VDO1_1(CLK_VDO1_HDR_GFX_FE1, "vdo1_hdr_gfx_fe1", "top_vpp", 17),
+	GATE_VDO1_1(CLK_VDO1_DISP_MIXER, "vdo1_disp_mixer", "top_vpp", 18),
+	GATE_VDO1_1(CLK_VDO1_HDR_VDO_FE0_DL_ASYNC, "vdo1_hdr_vdo_fe0_dl_async", "top_vpp", 19),
+	GATE_VDO1_1(CLK_VDO1_HDR_VDO_FE1_DL_ASYNC, "vdo1_hdr_vdo_fe1_dl_async", "top_vpp", 20),
+	GATE_VDO1_1(CLK_VDO1_HDR_GFX_FE0_DL_ASYNC, "vdo1_hdr_gfx_fe0_dl_async", "top_vpp", 21),
+	GATE_VDO1_1(CLK_VDO1_HDR_GFX_FE1_DL_ASYNC, "vdo1_hdr_gfx_fe1_dl_async", "top_vpp", 22),
+	GATE_VDO1_1(CLK_VDO1_HDR_VDO_BE_DL_ASYNC, "vdo1_hdr_vdo_be_dl_async", "top_vpp", 23),
+	/* VDO1_2 */
+	GATE_VDO1_2(CLK_VDO1_DPI0, "vdo1_dpi0", "top_vpp", 0),
+	GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPI0, "vdo1_disp_monitor_dpi0", "top_vpp", 1),
+	GATE_VDO1_2(CLK_VDO1_DPI1, "vdo1_dpi1", "top_vpp", 8),
+	GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPI1, "vdo1_disp_monitor_dpi1", "top_vpp", 9),
+	GATE_VDO1_2(CLK_VDO1_DPINTF, "vdo1_dpintf", "top_vpp", 16),
+	GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPINTF, "vdo1_disp_monitor_dpintf", "top_vpp", 17),
+	/* VDO1_3 */
+	GATE_VDO1_3(CLK_VDO1_26M_SLOW, "vdo1_26m_slow", "clk26m", 8),
+};
+
+static int clk_mt8195_vdo1_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->parent->of_node;
+	struct clk_onecell_data *clk_data;
+	int r;
+
+	clk_data = mtk_alloc_clk_data(CLK_VDO1_NR_CLK);
+	if (!clk_data)
+		return -ENOMEM;
+
+	r = mtk_clk_register_gates(node, vdo1_clks, ARRAY_SIZE(vdo1_clks), clk_data);
+	if (r)
+		goto free_vdo1_data;
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+	if (r)
+		goto free_vdo1_data;
+
+	return r;
+
+free_vdo1_data:
+	mtk_free_clk_data(clk_data);
+	return r;
+}
+
+static struct platform_driver clk_mt8195_vdo1_drv = {
+	.probe = clk_mt8195_vdo1_probe,
+	.driver = {
+		.name = "clk-mt8195-vdo1",
+	},
+};
+builtin_platform_driver(clk_mt8195_vdo1_drv);