From: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org> To: Simon Horman <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>, Magnus Damm <magnus.damm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Laurent Pinchart <laurent.pinchart+renesas-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>, Philipp Zabel <p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>, Michael Turquette <mturquette-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>, Stephen Boyd <sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>, Dirk Behme <dirk.behme-V5te9oGctAVWk0Htik3J/w@public.gmane.org> Cc: linux-renesas-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org> Subject: [PATCH/RFC v3 11/22] clk: renesas: r8a7778: Obtain mode pin values using R-Car RST driver Date: Wed, 1 Jun 2016 21:21:09 +0200 [thread overview] Message-ID: <1464808880-343-12-git-send-email-geert+renesas@glider.be> (raw) In-Reply-To: <1464808880-343-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org> Obtain the values of the mode pins from the R-Car RST driver, which relies on the presence in DT of a device node for the RESET/WDT module. Signed-off-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org> --- v3: - New. --- drivers/clk/renesas/clk-r8a7778.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/clk/renesas/clk-r8a7778.c b/drivers/clk/renesas/clk-r8a7778.c index 40e3a501a50e200f..07ea411098a75ad1 100644 --- a/drivers/clk/renesas/clk-r8a7778.c +++ b/drivers/clk/renesas/clk-r8a7778.c @@ -12,6 +12,7 @@ #include <linux/clk/renesas.h> #include <linux/of_address.h> #include <linux/slab.h> +#include <linux/soc/renesas/rcar-rst.h> struct r8a7778_cpg { struct clk_onecell_data data; @@ -83,6 +84,18 @@ static void __init r8a7778_cpg_clocks_init(struct device_node *np) struct clk **clks; unsigned int i; int num_clks; + u32 mode; + + if (rcar_rst_read_mode_pins(&mode)) + return; + + BUG_ON(!(mode & BIT(19))); + + cpg_mode_rates = (!!(mode & BIT(18)) << 2) | + (!!(mode & BIT(12)) << 1) | + (!!(mode & BIT(11))); + cpg_mode_divs = (!!(mode & BIT(2)) << 1) | + (!!(mode & BIT(1))); num_clks = of_property_count_strings(np, "clock-output-names"); if (num_clks < 0) { -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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From: Geert Uytterhoeven <geert+renesas@glider.be> To: Simon Horman <horms@verge.net.au>, Magnus Damm <magnus.damm@gmail.com>, Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>, Philipp Zabel <p.zabel@pengutronix.de>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@codeaurora.org>, Dirk Behme <dirk.behme@de.bosch.com> Cc: linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, Geert Uytterhoeven <geert+renesas@glider.be> Subject: [PATCH/RFC v3 11/22] clk: renesas: r8a7778: Obtain mode pin values using R-Car RST driver Date: Wed, 1 Jun 2016 21:21:09 +0200 [thread overview] Message-ID: <1464808880-343-12-git-send-email-geert+renesas@glider.be> (raw) In-Reply-To: <1464808880-343-1-git-send-email-geert+renesas@glider.be> Obtain the values of the mode pins from the R-Car RST driver, which relies on the presence in DT of a device node for the RESET/WDT module. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- v3: - New. --- drivers/clk/renesas/clk-r8a7778.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/clk/renesas/clk-r8a7778.c b/drivers/clk/renesas/clk-r8a7778.c index 40e3a501a50e200f..07ea411098a75ad1 100644 --- a/drivers/clk/renesas/clk-r8a7778.c +++ b/drivers/clk/renesas/clk-r8a7778.c @@ -12,6 +12,7 @@ #include <linux/clk/renesas.h> #include <linux/of_address.h> #include <linux/slab.h> +#include <linux/soc/renesas/rcar-rst.h> struct r8a7778_cpg { struct clk_onecell_data data; @@ -83,6 +84,18 @@ static void __init r8a7778_cpg_clocks_init(struct device_node *np) struct clk **clks; unsigned int i; int num_clks; + u32 mode; + + if (rcar_rst_read_mode_pins(&mode)) + return; + + BUG_ON(!(mode & BIT(19))); + + cpg_mode_rates = (!!(mode & BIT(18)) << 2) | + (!!(mode & BIT(12)) << 1) | + (!!(mode & BIT(11))); + cpg_mode_divs = (!!(mode & BIT(2)) << 1) | + (!!(mode & BIT(1))); num_clks = of_property_count_strings(np, "clock-output-names"); if (num_clks < 0) { -- 1.9.1
next prev parent reply other threads:[~2016-06-01 19:21 UTC|newest] Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-06-01 19:20 [PATCH/RFC v3 00/22] soc: renesas: Add R-Car RST driver for obtaining mode pin state Geert Uytterhoeven 2016-06-01 19:20 ` [PATCH/RFC v3 01/22] reset: Add renesas,rst DT bindings Geert Uytterhoeven 2016-06-02 5:40 ` Dirk Behme 2016-06-02 5:40 ` Dirk Behme 2016-06-02 5:40 ` Dirk Behme 2016-06-02 21:47 ` Laurent Pinchart 2016-06-02 21:47 ` Laurent Pinchart 2016-06-10 7:52 ` Geert Uytterhoeven 2016-06-10 7:52 ` Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 02/22] soc: renesas: Add R-Car RST driver Geert Uytterhoeven 2016-06-02 5:42 ` Dirk Behme 2016-06-02 5:42 ` Dirk Behme 2016-06-02 5:42 ` Dirk Behme 2016-06-10 7:58 ` Geert Uytterhoeven 2016-06-10 7:58 ` Geert Uytterhoeven 2016-06-10 8:38 ` Dirk Behme 2016-06-10 8:38 ` Dirk Behme 2016-06-10 8:38 ` Dirk Behme 2016-06-10 13:08 ` Laurent Pinchart 2016-06-10 13:08 ` Laurent Pinchart 2016-06-02 21:58 ` Laurent Pinchart 2016-06-02 21:58 ` Laurent Pinchart 2016-06-10 7:54 ` Geert Uytterhoeven 2016-06-10 7:54 ` Geert Uytterhoeven 2016-06-10 7:54 ` Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 05/22] ARM: dts: r8a7790: Add device node for RST module Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 06/22] ARM: dts: r8a7791: " Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 07/22] ARM: dts: r8a7793: " Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 08/22] ARM: dts: r8a7794: " Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 09/22] arm64: renesas: r8a7795 dtsi: " Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 10/22] arm64: renesas: r8a7796 " Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 13/22] clk: renesas: rcar-gen2: Obtain mode pin values using RST driver Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 14/22] clk: renesas: r8a7795: Obtain mode pin values from R-Car " Geert Uytterhoeven 2016-06-02 22:01 ` Laurent Pinchart 2016-06-02 22:01 ` Laurent Pinchart 2016-06-01 19:21 ` [PATCH/RFC v3 15/22] clk: renesas: r8a7796: " Geert Uytterhoeven 2016-06-02 22:02 ` Laurent Pinchart 2016-06-02 22:02 ` Laurent Pinchart 2016-06-01 19:21 ` [PATCH/RFC v3 17/22] ARM: shmobile: r8a7778: Stop passing mode pins state to clock driver Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 18/22] ARM: shmobile: r8a7779: " Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 19/22] ARM: shmobile: rcar-gen2: " Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 20/22] clk: renesas: r8a7778: Remove obsolete r8a7778_clocks_init() Geert Uytterhoeven 2016-06-02 5:54 ` Dirk Behme 2016-06-02 5:54 ` Dirk Behme 2016-06-02 5:54 ` Dirk Behme 2016-06-02 7:13 ` Geert Uytterhoeven 2016-06-02 7:13 ` Geert Uytterhoeven [not found] ` <1464808880-343-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org> 2016-06-01 19:21 ` [PATCH/RFC v3 03/22] ARM: dts: r8a7778: Add device node for RESET/WDT module Geert Uytterhoeven 2016-06-01 19:21 ` Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 04/22] ARM: dts: r8a7779: " Geert Uytterhoeven 2016-06-01 19:21 ` Geert Uytterhoeven 2016-06-01 19:21 ` Geert Uytterhoeven [this message] 2016-06-01 19:21 ` [PATCH/RFC v3 11/22] clk: renesas: r8a7778: Obtain mode pin values using R-Car RST driver Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 12/22] clk: renesas: r8a7779: Obtain mode pin values from " Geert Uytterhoeven 2016-06-01 19:21 ` Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 16/22] clk: renesas: rcar-gen3-cpg: Remove obsolete rcar_gen3_read_mode_pins() Geert Uytterhoeven 2016-06-01 19:21 ` Geert Uytterhoeven [not found] ` <1464808880-343-17-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org> 2016-06-02 22:02 ` Laurent Pinchart 2016-06-02 22:02 ` Laurent Pinchart 2016-06-02 22:02 ` Laurent Pinchart 2016-06-01 19:21 ` [PATCH/RFC v3 21/22] clk: renesas: r8a7779: Remove obsolete r8a7779_clocks_init() Geert Uytterhoeven 2016-06-01 19:21 ` Geert Uytterhoeven 2016-06-01 19:21 ` [PATCH/RFC v3 22/22] clk: renesas: rcar-gen2: Remove obsolete rcar_gen2_clocks_init() Geert Uytterhoeven 2016-06-02 5:57 ` [PATCH/RFC v3 00/22] soc: renesas: Add R-Car RST driver for obtaining mode pin state Dirk Behme 2016-06-02 5:57 ` Dirk Behme 2016-06-02 5:57 ` Dirk Behme 2016-06-30 20:14 ` Stephen Boyd 2016-06-30 20:14 ` Stephen Boyd 2016-09-01 11:46 ` Geert Uytterhoeven 2016-09-01 11:46 ` Geert Uytterhoeven 2016-09-12 22:16 ` Stephen Boyd 2016-09-12 22:16 ` Stephen Boyd 2016-09-13 6:48 ` Geert Uytterhoeven 2016-09-13 6:48 ` Geert Uytterhoeven
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