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linux/drivers/clk/mediatek/clk-mt8195-vdo1.c
Chen-Yu Tsai cf8a482afc clk: mediatek: mt8195: Implement remove functions 
Until now the mediatek clk driver library did not have any way to
unregister clks, and so none of the drivers implemented remove
functions.

Now that the library does have APIs to unregister clks, use them
to implement remove functions for the mt8195 clk drivers.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220208124034.414635-31-wenst@chromium.org
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-02-17 12:12:25 -08:00

159 lines
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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,
};
#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 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_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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