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609cc5e1a8
As part of the effort to improve the MediaTek clk drivers, the next step
is to switch from the old 'struct clk' clk prodivder APIs to the new
'struct clk_hw' ones.
Instead of adding new APIs to the MediaTek clk driver library mirroring
the existing ones, moving all drivers to the new APIs, and then removing
the old ones, just migrate everything at the same time. This involves
replacing 'struct clk' with 'struct clk_hw', and 'struct clk_onecell_data'
with 'struct clk_hw_onecell_data', and fixing up all usages.
For now, the clk_register() and co. usage is retained, with __clk_get_hw()
and (struct clk_hw *)->clk used to bridge the difference between the APIs.
These will be replaced in subsequent patches.
Fix up mtk_{alloc,free}_clk_data to use 'struct clk_hw' by hand. Fix up
all other affected call sites with the following coccinelle script.
// Replace type
@@
@@
- struct clk_onecell_data
+ struct clk_hw_onecell_data
// Replace of_clk_add_provider() & of_clk_src_simple_get()
@@
expression NP, DATA;
symbol of_clk_src_onecell_get;
@@
- of_clk_add_provider(
+ of_clk_add_hw_provider(
NP,
- of_clk_src_onecell_get,
+ of_clk_hw_onecell_get,
DATA
)
// Fix register/unregister
@@
identifier CD;
expression E;
identifier fn =~ "unregister";
@@
fn(...,
- CD->clks[E]
+ CD->hws[E]->clk
,...
);
// Fix calls to clk_prepare_enable()
@@
identifier CD;
expression E;
@@
clk_prepare_enable(
- CD->clks[E]
+ CD->hws[E]->clk
);
// Fix pointer assignment
@@
identifier CD;
identifier CLK;
expression E;
@@
- CD->clks[E]
+ CD->hws[E]
=
(
- CLK
+ __clk_get_hw(CLK)
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ERR_PTR(...)
)
;
// Fix pointer usage
@@
identifier CD;
expression E;
@@
- CD->clks[E]
+ CD->hws[E]
// Fix mtk_clk_pll_get_base()
@@
symbol clk, hw, data;
@@
mtk_clk_pll_get_base(
- struct clk *clk,
+ struct clk_hw *hw,
const struct mtk_pll_data *data
) {
- struct clk_hw *hw = __clk_get_hw(clk);
...
}
// Fix mtk_clk_pll_get_base() usage
@@
identifier CD;
expression E;
@@
mtk_clk_pll_get_base(
- CD->clks[E]
+ CD->hws[E]->clk
,...
);
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220519071610.423372-4-wenst@chromium.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
147 lines
5.1 KiB
C
147 lines
5.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2014 MediaTek Inc.
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* Author: James Liao <jamesjj.liao@mediatek.com>
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*/
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#include <linux/clk-provider.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include "clk-gate.h"
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#include "clk-mtk.h"
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#include <dt-bindings/clock/mt8173-clk.h>
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static const struct mtk_gate_regs mm0_cg_regs = {
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.set_ofs = 0x0104,
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.clr_ofs = 0x0108,
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.sta_ofs = 0x0100,
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};
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static const struct mtk_gate_regs mm1_cg_regs = {
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.set_ofs = 0x0114,
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.clr_ofs = 0x0118,
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.sta_ofs = 0x0110,
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};
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#define GATE_MM0(_id, _name, _parent, _shift) { \
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.id = _id, \
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.name = _name, \
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.parent_name = _parent, \
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.regs = &mm0_cg_regs, \
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.shift = _shift, \
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.ops = &mtk_clk_gate_ops_setclr, \
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}
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#define GATE_MM1(_id, _name, _parent, _shift) { \
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.id = _id, \
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.name = _name, \
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.parent_name = _parent, \
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.regs = &mm1_cg_regs, \
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.shift = _shift, \
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.ops = &mtk_clk_gate_ops_setclr, \
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}
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static const struct mtk_gate mt8173_mm_clks[] = {
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/* MM0 */
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GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "mm_sel", 0),
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GATE_MM0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1),
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GATE_MM0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 2),
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GATE_MM0(CLK_MM_MDP_RDMA0, "mm_mdp_rdma0", "mm_sel", 3),
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GATE_MM0(CLK_MM_MDP_RDMA1, "mm_mdp_rdma1", "mm_sel", 4),
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GATE_MM0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 5),
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GATE_MM0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 6),
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GATE_MM0(CLK_MM_MDP_RSZ2, "mm_mdp_rsz2", "mm_sel", 7),
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GATE_MM0(CLK_MM_MDP_TDSHP0, "mm_mdp_tdshp0", "mm_sel", 8),
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GATE_MM0(CLK_MM_MDP_TDSHP1, "mm_mdp_tdshp1", "mm_sel", 9),
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GATE_MM0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11),
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GATE_MM0(CLK_MM_MDP_WROT0, "mm_mdp_wrot0", "mm_sel", 12),
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GATE_MM0(CLK_MM_MDP_WROT1, "mm_mdp_wrot1", "mm_sel", 13),
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GATE_MM0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 14),
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GATE_MM0(CLK_MM_MUTEX_32K, "mm_mutex_32k", "rtc_sel", 15),
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GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "mm_sel", 16),
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GATE_MM0(CLK_MM_DISP_OVL1, "mm_disp_ovl1", "mm_sel", 17),
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GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "mm_sel", 18),
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GATE_MM0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 19),
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GATE_MM0(CLK_MM_DISP_RDMA2, "mm_disp_rdma2", "mm_sel", 20),
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GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "mm_sel", 21),
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GATE_MM0(CLK_MM_DISP_WDMA1, "mm_disp_wdma1", "mm_sel", 22),
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GATE_MM0(CLK_MM_DISP_COLOR0, "mm_disp_color0", "mm_sel", 23),
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GATE_MM0(CLK_MM_DISP_COLOR1, "mm_disp_color1", "mm_sel", 24),
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GATE_MM0(CLK_MM_DISP_AAL, "mm_disp_aal", "mm_sel", 25),
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GATE_MM0(CLK_MM_DISP_GAMMA, "mm_disp_gamma", "mm_sel", 26),
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GATE_MM0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 27),
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GATE_MM0(CLK_MM_DISP_SPLIT0, "mm_disp_split0", "mm_sel", 28),
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GATE_MM0(CLK_MM_DISP_SPLIT1, "mm_disp_split1", "mm_sel", 29),
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GATE_MM0(CLK_MM_DISP_MERGE, "mm_disp_merge", "mm_sel", 30),
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GATE_MM0(CLK_MM_DISP_OD, "mm_disp_od", "mm_sel", 31),
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/* MM1 */
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GATE_MM1(CLK_MM_DISP_PWM0MM, "mm_disp_pwm0mm", "mm_sel", 0),
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GATE_MM1(CLK_MM_DISP_PWM026M, "mm_disp_pwm026m", "pwm_sel", 1),
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GATE_MM1(CLK_MM_DISP_PWM1MM, "mm_disp_pwm1mm", "mm_sel", 2),
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GATE_MM1(CLK_MM_DISP_PWM126M, "mm_disp_pwm126m", "pwm_sel", 3),
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GATE_MM1(CLK_MM_DSI0_ENGINE, "mm_dsi0_engine", "mm_sel", 4),
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GATE_MM1(CLK_MM_DSI0_DIGITAL, "mm_dsi0_digital", "dsi0_dig", 5),
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GATE_MM1(CLK_MM_DSI1_ENGINE, "mm_dsi1_engine", "mm_sel", 6),
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GATE_MM1(CLK_MM_DSI1_DIGITAL, "mm_dsi1_digital", "dsi1_dig", 7),
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GATE_MM1(CLK_MM_DPI_PIXEL, "mm_dpi_pixel", "dpi0_sel", 8),
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GATE_MM1(CLK_MM_DPI_ENGINE, "mm_dpi_engine", "mm_sel", 9),
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GATE_MM1(CLK_MM_DPI1_PIXEL, "mm_dpi1_pixel", "lvds_pxl", 10),
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GATE_MM1(CLK_MM_DPI1_ENGINE, "mm_dpi1_engine", "mm_sel", 11),
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GATE_MM1(CLK_MM_HDMI_PIXEL, "mm_hdmi_pixel", "dpi0_sel", 12),
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GATE_MM1(CLK_MM_HDMI_PLLCK, "mm_hdmi_pllck", "hdmi_sel", 13),
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GATE_MM1(CLK_MM_HDMI_AUDIO, "mm_hdmi_audio", "apll1", 14),
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GATE_MM1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll2", 15),
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GATE_MM1(CLK_MM_LVDS_PIXEL, "mm_lvds_pixel", "lvds_pxl", 16),
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GATE_MM1(CLK_MM_LVDS_CTS, "mm_lvds_cts", "lvds_cts", 17),
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GATE_MM1(CLK_MM_SMI_LARB4, "mm_smi_larb4", "mm_sel", 18),
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GATE_MM1(CLK_MM_HDMI_HDCP, "mm_hdmi_hdcp", "hdcp_sel", 19),
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GATE_MM1(CLK_MM_HDMI_HDCP24M, "mm_hdmi_hdcp24m", "hdcp_24m_sel", 20),
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};
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struct clk_mt8173_mm_driver_data {
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const struct mtk_gate *gates_clk;
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int gates_num;
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};
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static const struct clk_mt8173_mm_driver_data mt8173_mmsys_driver_data = {
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.gates_clk = mt8173_mm_clks,
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.gates_num = ARRAY_SIZE(mt8173_mm_clks),
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};
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static int clk_mt8173_mm_probe(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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struct device_node *node = dev->parent->of_node;
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const struct clk_mt8173_mm_driver_data *data;
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struct clk_hw_onecell_data *clk_data;
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int ret;
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clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK);
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if (!clk_data)
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return -ENOMEM;
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data = &mt8173_mmsys_driver_data;
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ret = mtk_clk_register_gates(node, data->gates_clk, data->gates_num,
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clk_data);
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if (ret)
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return ret;
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ret = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
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if (ret)
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return ret;
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return 0;
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}
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static struct platform_driver clk_mt8173_mm_drv = {
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.driver = {
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.name = "clk-mt8173-mm",
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},
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.probe = clk_mt8173_mm_probe,
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};
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builtin_platform_driver(clk_mt8173_mm_drv);
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