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659f4a13dd
With Linux 6.1 many of our downstream patches and out-of-tree files can be removed or at least replaced by backported upstream commits. Signed-off-by: Daniel Golle <daniel@makrotopia.org> [fix CMDLINE_OVERRIDE for arm64] Signed-off-by: Bjørn Mork <bjorn@mork.no>
190 lines
5.9 KiB
Diff
190 lines
5.9 KiB
Diff
From 7b6183108c8ccf0dc295f39cdf78bd8078455636 Mon Sep 17 00:00:00 2001
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From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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Date: Fri, 20 Jan 2023 10:20:42 +0100
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Subject: [PATCH] clk: mediatek: clk-mtk: Extend mtk_clk_simple_probe()
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As a preparation to increase probe functions commonization across
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various MediaTek SoC clock controller drivers, extend function
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mtk_clk_simple_probe() to be able to register not only gates, but
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also fixed clocks, factors, muxes and composites.
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Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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Reviewed-by: Miles Chen <miles.chen@mediatek.com>
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Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
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Tested-by: Miles Chen <miles.chen@mediatek.com>
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Link: https://lore.kernel.org/r/20230120092053.182923-13-angelogioacchino.delregno@collabora.com
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Tested-by: Mingming Su <mingming.su@mediatek.com>
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Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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---
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drivers/clk/mediatek/clk-mtk.c | 101 ++++++++++++++++++++++++++++++---
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drivers/clk/mediatek/clk-mtk.h | 10 ++++
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2 files changed, 103 insertions(+), 8 deletions(-)
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--- a/drivers/clk/mediatek/clk-mtk.c
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+++ b/drivers/clk/mediatek/clk-mtk.c
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@@ -11,12 +11,14 @@
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#include <linux/mfd/syscon.h>
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#include <linux/module.h>
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#include <linux/of.h>
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+#include <linux/of_address.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include "clk-mtk.h"
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#include "clk-gate.h"
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+#include "clk-mux.h"
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const struct mtk_gate_regs cg_regs_dummy = { 0, 0, 0 };
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EXPORT_SYMBOL_GPL(cg_regs_dummy);
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@@ -466,20 +468,71 @@ int mtk_clk_simple_probe(struct platform
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const struct mtk_clk_desc *mcd;
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struct clk_hw_onecell_data *clk_data;
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struct device_node *node = pdev->dev.of_node;
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- int r;
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+ void __iomem *base;
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+ int num_clks, r;
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mcd = of_device_get_match_data(&pdev->dev);
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if (!mcd)
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return -EINVAL;
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- clk_data = mtk_alloc_clk_data(mcd->num_clks);
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+ /* Composite clocks needs us to pass iomem pointer */
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+ if (mcd->composite_clks) {
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+ if (!mcd->shared_io)
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+ base = devm_platform_ioremap_resource(pdev, 0);
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+ else
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+ base = of_iomap(node, 0);
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+
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+ if (IS_ERR_OR_NULL(base))
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+ return IS_ERR(base) ? PTR_ERR(base) : -ENOMEM;
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+ }
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+
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+ /* Calculate how many clk_hw_onecell_data entries to allocate */
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+ num_clks = mcd->num_clks + mcd->num_composite_clks;
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+ num_clks += mcd->num_fixed_clks + mcd->num_factor_clks;
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+ num_clks += mcd->num_mux_clks;
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+
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+ clk_data = mtk_alloc_clk_data(num_clks);
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if (!clk_data)
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return -ENOMEM;
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- r = mtk_clk_register_gates(&pdev->dev, node, mcd->clks, mcd->num_clks,
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- clk_data);
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- if (r)
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- goto free_data;
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+ if (mcd->fixed_clks) {
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+ r = mtk_clk_register_fixed_clks(mcd->fixed_clks,
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+ mcd->num_fixed_clks, clk_data);
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+ if (r)
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+ goto free_data;
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+ }
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+
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+ if (mcd->factor_clks) {
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+ r = mtk_clk_register_factors(mcd->factor_clks,
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+ mcd->num_factor_clks, clk_data);
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+ if (r)
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+ goto unregister_fixed_clks;
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+ }
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+
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+ if (mcd->mux_clks) {
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+ r = mtk_clk_register_muxes(&pdev->dev, mcd->mux_clks,
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+ mcd->num_mux_clks, node,
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+ mcd->clk_lock, clk_data);
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+ if (r)
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+ goto unregister_factors;
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+ };
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+
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+ if (mcd->composite_clks) {
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+ /* We don't check composite_lock because it's optional */
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+ r = mtk_clk_register_composites(&pdev->dev,
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+ mcd->composite_clks,
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+ mcd->num_composite_clks,
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+ base, mcd->clk_lock, clk_data);
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+ if (r)
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+ goto unregister_muxes;
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+ }
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+
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+ if (mcd->clks) {
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+ r = mtk_clk_register_gates(&pdev->dev, node, mcd->clks,
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+ mcd->num_clks, clk_data);
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+ if (r)
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+ goto unregister_composites;
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+ }
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r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
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if (r)
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@@ -497,9 +550,28 @@ int mtk_clk_simple_probe(struct platform
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return r;
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unregister_clks:
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- mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
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+ if (mcd->clks)
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+ mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
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+unregister_composites:
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+ if (mcd->composite_clks)
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+ mtk_clk_unregister_composites(mcd->composite_clks,
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+ mcd->num_composite_clks, clk_data);
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+unregister_muxes:
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+ if (mcd->mux_clks)
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+ mtk_clk_unregister_muxes(mcd->mux_clks,
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+ mcd->num_mux_clks, clk_data);
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+unregister_factors:
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+ if (mcd->factor_clks)
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+ mtk_clk_unregister_factors(mcd->factor_clks,
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+ mcd->num_factor_clks, clk_data);
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+unregister_fixed_clks:
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+ if (mcd->fixed_clks)
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+ mtk_clk_unregister_fixed_clks(mcd->fixed_clks,
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+ mcd->num_fixed_clks, clk_data);
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free_data:
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mtk_free_clk_data(clk_data);
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+ if (mcd->shared_io && base)
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+ iounmap(base);
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return r;
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}
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EXPORT_SYMBOL_GPL(mtk_clk_simple_probe);
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@@ -511,7 +583,20 @@ int mtk_clk_simple_remove(struct platfor
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struct device_node *node = pdev->dev.of_node;
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of_clk_del_provider(node);
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- mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
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+ if (mcd->clks)
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+ mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
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+ if (mcd->composite_clks)
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+ mtk_clk_unregister_composites(mcd->composite_clks,
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+ mcd->num_composite_clks, clk_data);
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+ if (mcd->mux_clks)
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+ mtk_clk_unregister_muxes(mcd->mux_clks,
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+ mcd->num_mux_clks, clk_data);
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+ if (mcd->factor_clks)
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+ mtk_clk_unregister_factors(mcd->factor_clks,
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+ mcd->num_factor_clks, clk_data);
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+ if (mcd->fixed_clks)
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+ mtk_clk_unregister_fixed_clks(mcd->fixed_clks,
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+ mcd->num_fixed_clks, clk_data);
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mtk_free_clk_data(clk_data);
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return 0;
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--- a/drivers/clk/mediatek/clk-mtk.h
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+++ b/drivers/clk/mediatek/clk-mtk.h
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@@ -215,7 +215,17 @@ void mtk_clk_unregister_ref2usb_tx(struc
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struct mtk_clk_desc {
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const struct mtk_gate *clks;
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size_t num_clks;
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+ const struct mtk_composite *composite_clks;
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+ size_t num_composite_clks;
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+ const struct mtk_fixed_clk *fixed_clks;
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+ size_t num_fixed_clks;
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+ const struct mtk_fixed_factor *factor_clks;
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+ size_t num_factor_clks;
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+ const struct mtk_mux *mux_clks;
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+ size_t num_mux_clks;
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const struct mtk_clk_rst_desc *rst_desc;
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+ spinlock_t *clk_lock;
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+ bool shared_io;
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};
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int mtk_clk_simple_probe(struct platform_device *pdev);
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