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[90.63.244.31]) by smtp.gmail.com with ESMTPSA id e40-20020a5d5968000000b002fda1b12a0bsm4653096wri.2.2023.06.09.07.31.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 09 Jun 2023 07:31:22 -0700 (PDT) References: <20230607-topic-amlogic-upstream-clkid-public-migration-v1-0-9676afa6b22c@linaro.org> <20230607-topic-amlogic-upstream-clkid-public-migration-v1-3-9676afa6b22c@linaro.org> <1jlegu9l5d.fsf@starbuckisacylon.baylibre.com> <638206ba-e2da-bb8e-a2e4-138af84648b4@linaro.org> User-agent: mu4e 1.8.13; emacs 28.2 From: Jerome Brunet To: Neil Armstrong , Michael Turquette , Stephen Boyd , Kevin Hilman , Martin Blumenstingl , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH 03/18] clk: meson: migrate a1 clock drivers out of hw_onecell_data to drop NR_CLKS Date: Fri, 09 Jun 2023 16:30:45 +0200 In-reply-to: <638206ba-e2da-bb8e-a2e4-138af84648b4@linaro.org> Message-ID: <1jwn0c672d.fsf@starbuckisacylon.baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230609_073126_325114_D88EF03A X-CRM114-Status: GOOD ( 19.65 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On Thu 08 Jun 2023 at 14:53, Neil Armstrong wrote: > On 08/06/2023 14:45, Jerome Brunet wrote: >>> +struct meson_a1_pll_clks { >>> + struct clk_hw **hw_clks; >>> + unsigned int hw_clk_num; >>> +}; >>> + >>> +static struct meson_a1_pll_clks a1_pll_clks = { >>> + .hw_clks = a1_pll_hw_clks, >>> + .hw_clk_num = ARRAY_SIZE(a1_pll_hw_clks), >>> +}; >>> + >>> +static struct clk_hw *meson_a1_pll_hw_get(struct of_phandle_args *clkspec, void *clk_data) >>> +{ >>> + const struct meson_a1_pll_clks *data = clk_data; >>> + unsigned int idx = clkspec->args[0]; >>> + >>> + if (idx >= data->hw_clk_num) { >>> + pr_err("%s: invalid index %u\n", __func__, idx); >>> + return ERR_PTR(-EINVAL); >>> + } >>> + >>> + return data->hw_clks[idx]; >>> +} >> I'd prefer to have a single struct type and and single custom >> callback for the different SoC please. > > Sure, I've written a common code for that, but I have a hard time finding > a proper naming for it... so I choosed meson-clkc since it could have > more common helper code for duplicated code over the clk driver: Agreed. meson-clkc-utils maybe ? > > ===================================><============================================================================ > diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig > index 8ce846fdbe43..9070dcfd9e71 100644 > --- a/drivers/clk/meson/Kconfig > +++ b/drivers/clk/meson/Kconfig > @@ -30,6 +30,9 @@ config COMMON_CLK_MESON_VID_PLL_DIV > tristate > select COMMON_CLK_MESON_REGMAP > > +config COMMON_CLK_MESON_CLKC > + tristate > + > config COMMON_CLK_MESON_AO_CLKC > tristate > select COMMON_CLK_MESON_REGMAP > diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile > index d5288662881d..13c6db466986 100644 > --- a/drivers/clk/meson/Makefile > +++ b/drivers/clk/meson/Makefile > @@ -1,6 +1,7 @@ > # SPDX-License-Identifier: GPL-2.0-only > # Amlogic clock drivers > > +obj-$(CONFIG_COMMON_CLK_MESON_CLKC) += meson-clkc.o > obj-$(CONFIG_COMMON_CLK_MESON_AO_CLKC) += meson-aoclk.o > obj-$(CONFIG_COMMON_CLK_MESON_CPU_DYNDIV) += clk-cpu-dyndiv.o > obj-$(CONFIG_COMMON_CLK_MESON_DUALDIV) += clk-dualdiv.o > diff --git a/drivers/clk/meson/meson-clkc.c b/drivers/clk/meson/meson-clkc.c > new file mode 100644 > index 000000000000..fa98b9d09011 > --- /dev/null > +++ b/drivers/clk/meson/meson-clkc.c > @@ -0,0 +1,25 @@ > +// SPDX-License-Identifier: GPL-2.0+ > +/* > + * Copyright (c) 2023 Neil Armstrong > + */ > + > +#include > +#include > +#include > +#include "meson-clkc.h" > + > +struct clk_hw *meson_clk_hw_get(struct of_phandle_args *clkspec, void *clk_hw_data) > +{ > + const struct meson_clk_hw_data *data = clk_hw_data; > + unsigned int idx = clkspec->args[0]; > + > + if (idx >= data->num) { > + pr_err("%s: invalid index %u\n", __func__, idx); > + return ERR_PTR(-EINVAL); > + } > + > + return data->hws[idx]; > +} > +EXPORT_SYMBOL_GPL(meson_clk_hw_get); > + > +MODULE_LICENSE("GPL v2"); > diff --git a/drivers/clk/meson/meson-clkc.h b/drivers/clk/meson/meson-clkc.h > new file mode 100644 > index 000000000000..e3bad2aa17eb > --- /dev/null > +++ b/drivers/clk/meson/meson-clkc.h > @@ -0,0 +1,19 @@ > +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */ > +/* > + * Copyright (c) 2023 Neil Armstrong > + */ > + > +#ifndef __MESON_HW_CLKC_H__ > +#define __MESON_HW_CLKC_H__ > + > +#include > +#include > + > +struct meson_clk_hw_data { > + struct clk_hw **hws; > + unsigned int num; > +}; > + > +struct clk_hw *meson_clk_hw_get(struct of_phandle_args *clkspec, void *clk_hw_data); > + > +#endif > ===================================><============================================================================ > > If it's ok I'll send a v2 using this. > > Thanks, > Neil _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic