| Message ID | 20191207224740.24536-8-matthias.bgg@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm/arm64: mediatek: Fix mmsys device probing | expand |
Hi Matthias, On 7/12/19 23:47, matthias.bgg@kernel.org wrote: > From: Matthias Brugger <mbrugger@suse.com> > > Switch probing for the MMSYS to support invocation to a > plain paltform device. The driver will be probed by the DRM subsystem. > > Signed-off-by: Matthias Brugger <mbrugger@suse.com> > --- > drivers/clk/mediatek/clk-mt2712-mm.c | 39 +++++++++++++++++++--------- Same comments as previous patch. > 1 file changed, 27 insertions(+), 12 deletions(-) > > diff --git a/drivers/clk/mediatek/clk-mt2712-mm.c b/drivers/clk/mediatek/clk-mt2712-mm.c > index 1c5948be35f3..d018db568263 100644 > --- a/drivers/clk/mediatek/clk-mt2712-mm.c > +++ b/drivers/clk/mediatek/clk-mt2712-mm.c > @@ -4,14 +4,20 @@ > * Author: Weiyi Lu <weiyi.lu@mediatek.com> > */ > > +#include <linux/module.h> > #include <linux/clk-provider.h> > #include <linux/platform_device.h> > +#include <linux/slab.h> > > #include "clk-mtk.h" > #include "clk-gate.h" > > #include <dt-bindings/clock/mt2712-clk.h> > > +struct clk_mt2712_mm_priv { > + struct clk_onecell_data *clk_data; > +}; > + > static const struct mtk_gate_regs mm0_cg_regs = { > .set_ofs = 0x104, > .clr_ofs = 0x108, > @@ -128,16 +134,22 @@ static const struct mtk_gate mm_clks[] = { > > static int clk_mt2712_mm_probe(struct platform_device *pdev) > { > - struct clk_onecell_data *clk_data; > int r; > - struct device_node *node = pdev->dev.of_node; > + struct device_node *node = pdev->dev.parent->of_node; > + struct clk_mt2712_mm_priv *private; > + > + private = devm_kzalloc(&pdev->dev, sizeof(*private), GFP_KERNEL); > + if (!private) > + return -ENOMEM; > > - clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK); > + private->clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK); > + platform_set_drvdata(pdev, private); > > mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks), > - clk_data); > + private->clk_data); > > - r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); > + r = of_clk_add_provider(node, of_clk_src_onecell_get, > + private->clk_data); > > if (r != 0) > pr_err("%s(): could not register clock provider: %d\n", > @@ -146,17 +158,20 @@ static int clk_mt2712_mm_probe(struct platform_device *pdev) > return r; > } > > -static const struct of_device_id of_match_clk_mt2712_mm[] = { > - { .compatible = "mediatek,mt2712-mmsys", }, > - {} > -}; > +static int clk_mt2712_mm_remove(struct platform_device *pdev) > +{ > + struct clk_mt2712_mm_priv *private = platform_get_drvdata(pdev); > + > + kfree(private->clk_data); > + > + return 0; > +} > > static struct platform_driver clk_mt2712_mm_drv = { > .probe = clk_mt2712_mm_probe, > + .remove = clk_mt2712_mm_remove, > .driver = { > .name = "clk-mt2712-mm", > - .of_match_table = of_match_clk_mt2712_mm, > }, > }; > - > -builtin_platform_driver(clk_mt2712_mm_drv); > +module_platform_driver(clk_mt2712_mm_drv); >
diff --git a/drivers/clk/mediatek/clk-mt2712-mm.c b/drivers/clk/mediatek/clk-mt2712-mm.c index 1c5948be35f3..d018db568263 100644 --- a/drivers/clk/mediatek/clk-mt2712-mm.c +++ b/drivers/clk/mediatek/clk-mt2712-mm.c @@ -4,14 +4,20 @@ * Author: Weiyi Lu <weiyi.lu@mediatek.com> */ +#include <linux/module.h> #include <linux/clk-provider.h> #include <linux/platform_device.h> +#include <linux/slab.h> #include "clk-mtk.h" #include "clk-gate.h" #include <dt-bindings/clock/mt2712-clk.h> +struct clk_mt2712_mm_priv { + struct clk_onecell_data *clk_data; +}; + static const struct mtk_gate_regs mm0_cg_regs = { .set_ofs = 0x104, .clr_ofs = 0x108, @@ -128,16 +134,22 @@ static const struct mtk_gate mm_clks[] = { static int clk_mt2712_mm_probe(struct platform_device *pdev) { - struct clk_onecell_data *clk_data; int r; - struct device_node *node = pdev->dev.of_node; + struct device_node *node = pdev->dev.parent->of_node; + struct clk_mt2712_mm_priv *private; + + private = devm_kzalloc(&pdev->dev, sizeof(*private), GFP_KERNEL); + if (!private) + return -ENOMEM; - clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK); + private->clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK); + platform_set_drvdata(pdev, private); mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks), - clk_data); + private->clk_data); - r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + r = of_clk_add_provider(node, of_clk_src_onecell_get, + private->clk_data); if (r != 0) pr_err("%s(): could not register clock provider: %d\n", @@ -146,17 +158,20 @@ static int clk_mt2712_mm_probe(struct platform_device *pdev) return r; } -static const struct of_device_id of_match_clk_mt2712_mm[] = { - { .compatible = "mediatek,mt2712-mmsys", }, - {} -}; +static int clk_mt2712_mm_remove(struct platform_device *pdev) +{ + struct clk_mt2712_mm_priv *private = platform_get_drvdata(pdev); + + kfree(private->clk_data); + + return 0; +} static struct platform_driver clk_mt2712_mm_drv = { .probe = clk_mt2712_mm_probe, + .remove = clk_mt2712_mm_remove, .driver = { .name = "clk-mt2712-mm", - .of_match_table = of_match_clk_mt2712_mm, }, }; - -builtin_platform_driver(clk_mt2712_mm_drv); +module_platform_driver(clk_mt2712_mm_drv);