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linux/drivers/clk/mediatek/clk-mt8195-vdo1.c
AngeloGioacchino Del Regno 20498d52c9 clk: mediatek: clk-gate: Propagate struct device with mtk_clk_register_gates() 
Commit e4c23e19aa ("clk: mediatek: Register clock gate with device")
introduces a helper function for the sole purpose of propagating a
struct device pointer to the clk API when registering the mtk-gate
clocks to take advantage of Runtime PM when/where needed and where
a power domain is defined in devicetree.

Function mtk_clk_register_gates() then becomes a wrapper around the
new mtk_clk_register_gates_with_dev() function that will simply pass
NULL as struct device: this is essential when registering drivers
with CLK_OF_DECLARE instead of as a platform device, as there will
be no struct device to pass... but we can as well simply have only
one function that always takes such pointer as a param and pass NULL
when unavoidable.

This commit removes the mtk_clk_register_gates() wrapper and renames
mtk_clk_register_gates_with_dev() to the former and all of the calls
to either of the two functions were fixed in all drivers in order to
reflect this change; also, to improve consistency with other kernel
functions, the pointer to struct device was moved as the first param.

Since a lot of MediaTek clock drivers are actually registering as a
platform device, but were still registering the mtk-gate clocks
without passing any struct device to the clock framework, they've
been changed to pass a valid one now, as to make all those platforms
able to use runtime power management where available.

While at it, some much needed indentation changes were also done.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20230120092053.182923-4-angelogioacchino.delregno@collabora.com
Tested-by: Mingming Su <mingming.su@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-01-30 16:44:56 -08:00

175 lines
6.7 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
//
// 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,
};
static const struct mtk_gate_regs vdo1_4_cg_regs = {
.set_ofs = 0x400,
.clr_ofs = 0x400,
.sta_ofs = 0x400,
};
#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_2_FLAGS(_id, _name, _parent, _shift, _flags) \
GATE_MTK_FLAGS(_id, _name, _parent, &vdo1_2_cg_regs, _shift, \
&mtk_clk_gate_ops_setclr, _flags)
#define GATE_VDO1_3(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &vdo1_3_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
#define GATE_VDO1_4(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &vdo1_4_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
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_FLAGS(CLK_VDO1_DPINTF, "vdo1_dpintf", "top_dp", 16, CLK_SET_RATE_PARENT),
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),
/* VDO1_4 */
GATE_VDO1_4(CLK_VDO1_DPI1_HDMI, "vdo1_dpi1_hdmi", "hdmi_txpll", 0),
};
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_hw_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(&pdev->dev, node, vdo1_clks,
ARRAY_SIZE(vdo1_clks), clk_data);
if (r)
goto free_vdo1_data;
r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
if (r)
goto unregister_gates;
platform_set_drvdata(pdev, clk_data);
return r;
unregister_gates:
mtk_clk_unregister_gates(vdo1_clks, ARRAY_SIZE(vdo1_clks), clk_data);
free_vdo1_data:
mtk_free_clk_data(clk_data);
return r;
}
static int clk_mt8195_vdo1_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *node = dev->parent->of_node;
struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev);
of_clk_del_provider(node);
mtk_clk_unregister_gates(vdo1_clks, ARRAY_SIZE(vdo1_clks), clk_data);
mtk_free_clk_data(clk_data);
return 0;
}
static struct platform_driver clk_mt8195_vdo1_drv = {
.probe = clk_mt8195_vdo1_probe,
.remove = clk_mt8195_vdo1_remove,
.driver = {
.name = "clk-mt8195-vdo1",
},
};
builtin_platform_driver(clk_mt8195_vdo1_drv);
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