openwrt/target/linux/mediatek/patches-6.1/226-v6.3-clk-mediatek-clk-mtk-Extend-mtk_clk_simple_probe.patch
Daniel Golle 659f4a13dd mediatek: adapt files and patches for Linux 6.1
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>
2023-07-07 14:01:39 +02:00

190 lines
5.9 KiB
Diff

From 7b6183108c8ccf0dc295f39cdf78bd8078455636 Mon Sep 17 00:00:00 2001
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Date: Fri, 20 Jan 2023 10:20:42 +0100
Subject: [PATCH] clk: mediatek: clk-mtk: Extend mtk_clk_simple_probe()
As a preparation to increase probe functions commonization across
various MediaTek SoC clock controller drivers, extend function
mtk_clk_simple_probe() to be able to register not only gates, but
also fixed clocks, factors, muxes and composites.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20230120092053.182923-13-angelogioacchino.delregno@collabora.com
Tested-by: Mingming Su <mingming.su@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
---
drivers/clk/mediatek/clk-mtk.c | 101 ++++++++++++++++++++++++++++++---
drivers/clk/mediatek/clk-mtk.h | 10 ++++
2 files changed, 103 insertions(+), 8 deletions(-)
--- a/drivers/clk/mediatek/clk-mtk.c
+++ b/drivers/clk/mediatek/clk-mtk.c
@@ -11,12 +11,14 @@
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include "clk-mtk.h"
#include "clk-gate.h"
+#include "clk-mux.h"
const struct mtk_gate_regs cg_regs_dummy = { 0, 0, 0 };
EXPORT_SYMBOL_GPL(cg_regs_dummy);
@@ -466,20 +468,71 @@ int mtk_clk_simple_probe(struct platform
const struct mtk_clk_desc *mcd;
struct clk_hw_onecell_data *clk_data;
struct device_node *node = pdev->dev.of_node;
- int r;
+ void __iomem *base;
+ int num_clks, r;
mcd = of_device_get_match_data(&pdev->dev);
if (!mcd)
return -EINVAL;
- clk_data = mtk_alloc_clk_data(mcd->num_clks);
+ /* Composite clocks needs us to pass iomem pointer */
+ if (mcd->composite_clks) {
+ if (!mcd->shared_io)
+ base = devm_platform_ioremap_resource(pdev, 0);
+ else
+ base = of_iomap(node, 0);
+
+ if (IS_ERR_OR_NULL(base))
+ return IS_ERR(base) ? PTR_ERR(base) : -ENOMEM;
+ }
+
+ /* Calculate how many clk_hw_onecell_data entries to allocate */
+ num_clks = mcd->num_clks + mcd->num_composite_clks;
+ num_clks += mcd->num_fixed_clks + mcd->num_factor_clks;
+ num_clks += mcd->num_mux_clks;
+
+ clk_data = mtk_alloc_clk_data(num_clks);
if (!clk_data)
return -ENOMEM;
- r = mtk_clk_register_gates(&pdev->dev, node, mcd->clks, mcd->num_clks,
- clk_data);
- if (r)
- goto free_data;
+ if (mcd->fixed_clks) {
+ r = mtk_clk_register_fixed_clks(mcd->fixed_clks,
+ mcd->num_fixed_clks, clk_data);
+ if (r)
+ goto free_data;
+ }
+
+ if (mcd->factor_clks) {
+ r = mtk_clk_register_factors(mcd->factor_clks,
+ mcd->num_factor_clks, clk_data);
+ if (r)
+ goto unregister_fixed_clks;
+ }
+
+ if (mcd->mux_clks) {
+ r = mtk_clk_register_muxes(&pdev->dev, mcd->mux_clks,
+ mcd->num_mux_clks, node,
+ mcd->clk_lock, clk_data);
+ if (r)
+ goto unregister_factors;
+ };
+
+ if (mcd->composite_clks) {
+ /* We don't check composite_lock because it's optional */
+ r = mtk_clk_register_composites(&pdev->dev,
+ mcd->composite_clks,
+ mcd->num_composite_clks,
+ base, mcd->clk_lock, clk_data);
+ if (r)
+ goto unregister_muxes;
+ }
+
+ if (mcd->clks) {
+ r = mtk_clk_register_gates(&pdev->dev, node, mcd->clks,
+ mcd->num_clks, clk_data);
+ if (r)
+ goto unregister_composites;
+ }
r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
if (r)
@@ -497,9 +550,28 @@ int mtk_clk_simple_probe(struct platform
return r;
unregister_clks:
- mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
+ if (mcd->clks)
+ mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
+unregister_composites:
+ if (mcd->composite_clks)
+ mtk_clk_unregister_composites(mcd->composite_clks,
+ mcd->num_composite_clks, clk_data);
+unregister_muxes:
+ if (mcd->mux_clks)
+ mtk_clk_unregister_muxes(mcd->mux_clks,
+ mcd->num_mux_clks, clk_data);
+unregister_factors:
+ if (mcd->factor_clks)
+ mtk_clk_unregister_factors(mcd->factor_clks,
+ mcd->num_factor_clks, clk_data);
+unregister_fixed_clks:
+ if (mcd->fixed_clks)
+ mtk_clk_unregister_fixed_clks(mcd->fixed_clks,
+ mcd->num_fixed_clks, clk_data);
free_data:
mtk_free_clk_data(clk_data);
+ if (mcd->shared_io && base)
+ iounmap(base);
return r;
}
EXPORT_SYMBOL_GPL(mtk_clk_simple_probe);
@@ -511,7 +583,20 @@ int mtk_clk_simple_remove(struct platfor
struct device_node *node = pdev->dev.of_node;
of_clk_del_provider(node);
- mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
+ if (mcd->clks)
+ mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
+ if (mcd->composite_clks)
+ mtk_clk_unregister_composites(mcd->composite_clks,
+ mcd->num_composite_clks, clk_data);
+ if (mcd->mux_clks)
+ mtk_clk_unregister_muxes(mcd->mux_clks,
+ mcd->num_mux_clks, clk_data);
+ if (mcd->factor_clks)
+ mtk_clk_unregister_factors(mcd->factor_clks,
+ mcd->num_factor_clks, clk_data);
+ if (mcd->fixed_clks)
+ mtk_clk_unregister_fixed_clks(mcd->fixed_clks,
+ mcd->num_fixed_clks, clk_data);
mtk_free_clk_data(clk_data);
return 0;
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -215,7 +215,17 @@ void mtk_clk_unregister_ref2usb_tx(struc
struct mtk_clk_desc {
const struct mtk_gate *clks;
size_t num_clks;
+ const struct mtk_composite *composite_clks;
+ size_t num_composite_clks;
+ const struct mtk_fixed_clk *fixed_clks;
+ size_t num_fixed_clks;
+ const struct mtk_fixed_factor *factor_clks;
+ size_t num_factor_clks;
+ const struct mtk_mux *mux_clks;
+ size_t num_mux_clks;
const struct mtk_clk_rst_desc *rst_desc;
+ spinlock_t *clk_lock;
+ bool shared_io;
};
int mtk_clk_simple_probe(struct platform_device *pdev);