Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753737Ab3FKJKS (ORCPT ); Tue, 11 Jun 2013 05:10:18 -0400 Received: from mail-bk0-f43.google.com ([209.85.214.43]:38328 "EHLO mail-bk0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752350Ab3FKJKO (ORCPT ); Tue, 11 Jun 2013 05:10:14 -0400 Date: Tue, 11 Jun 2013 10:10:08 +0100 From: Lee Jones To: Ulf Hansson Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, arnd@arndb.de, linus.walleij@stericsson.com, srinidhi.kasagar@stericsson.com, Mike Turquette Subject: Re: [PATCH 21/33] clk: ux500: Add Device Tree support for the PRCC Kernel clock Message-ID: <20130611091008.GA9216@laptop> References: <1370521041-32318-1-git-send-email-lee.jones@linaro.org> <1370521041-32318-22-git-send-email-lee.jones@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 8651 Lines: 194 > > This patch enables clocks to be specified from Device Tree via phandles > > to the "prcc-kernel-clock" node. > > > > Cc: Mike Turquette > > Cc: Ulf Hansson > > Signed-off-by: Lee Jones > > Could you please fold this patch into a "common PRCC device tree > support" patch instead. Thus handling both P and K clocks in the same > patch. I'm really not a fan of creating massive patches, so I'd really rather not. > That would probaby solve the missmatch of the macro definitions as > well. Like were did the PRCC_KCLK_STORE come from? I do see your point though, I will move PRCC_KCLK_STORE() into this patch. > > --- > > drivers/clk/ux500/u8500_clk.c | 30 ++++++++++++++++++++++++++++++ > > 1 file changed, 30 insertions(+) > > > > diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c > > index 86de1a7..c3ed09c 100644 > > --- a/drivers/clk/ux500/u8500_clk.c > > +++ b/drivers/clk/ux500/u8500_clk.c > > @@ -20,6 +20,7 @@ > > > > static struct clk *prcmu_clk[PRCMU_NUM_CLKS]; > > static struct clk *prcc_pclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER]; > > +static struct clk *prcc_kclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER]; > > > > #define PRCC_SHOW(clk, base, bit) \ > > clk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] > > @@ -540,110 +541,136 @@ void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, > > clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk", > > clkrst1_base, BIT(0), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "uart0"); > > + PRCC_KCLK_STORE(clk, 1, 0); > > > > clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk", > > clkrst1_base, BIT(1), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "uart1"); > > + PRCC_KCLK_STORE(clk, 1, 1); > > > > clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk", > > clkrst1_base, BIT(2), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "nmk-i2c.1"); > > + PRCC_KCLK_STORE(clk, 1, 2); > > > > clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk", > > clkrst1_base, BIT(3), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "msp0"); > > clk_register_clkdev(clk, NULL, "ux500-msp-i2s.0"); > > + PRCC_KCLK_STORE(clk, 1, 3); > > > > clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk", > > clkrst1_base, BIT(4), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "msp1"); > > clk_register_clkdev(clk, NULL, "ux500-msp-i2s.1"); > > + PRCC_KCLK_STORE(clk, 1, 4); > > > > clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk", > > clkrst1_base, BIT(5), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "sdi0"); > > + PRCC_KCLK_STORE(clk, 1, 5); > > > > clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk", > > clkrst1_base, BIT(6), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "nmk-i2c.2"); > > + PRCC_KCLK_STORE(clk, 1, 6); > > > > clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk", > > clkrst1_base, BIT(8), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "slimbus0"); > > + PRCC_KCLK_STORE(clk, 1, 8); > > > > clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk", > > clkrst1_base, BIT(9), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "nmk-i2c.4"); > > + PRCC_KCLK_STORE(clk, 1, 9); > > > > clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk", > > clkrst1_base, BIT(10), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "msp3"); > > clk_register_clkdev(clk, NULL, "ux500-msp-i2s.3"); > > + PRCC_KCLK_STORE(clk, 1, 10); > > > > /* Periph2 */ > > clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk", > > clkrst2_base, BIT(0), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "nmk-i2c.3"); > > + PRCC_KCLK_STORE(clk, 2, 0); > > > > clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk", > > clkrst2_base, BIT(2), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "sdi4"); > > + PRCC_KCLK_STORE(clk, 2, 2); > > > > clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk", > > clkrst2_base, BIT(3), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "msp2"); > > clk_register_clkdev(clk, NULL, "ux500-msp-i2s.2"); > > + PRCC_KCLK_STORE(clk, 2, 3); > > > > clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk", > > clkrst2_base, BIT(4), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "sdi1"); > > + PRCC_KCLK_STORE(clk, 2, 4); > > > > clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk", > > clkrst2_base, BIT(5), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "sdi3"); > > + PRCC_KCLK_STORE(clk, 2, 5); > > > > /* Note that rate is received from parent. */ > > clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk", > > clkrst2_base, BIT(6), > > CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); > > + PRCC_KCLK_STORE(clk, 2, 6); > > + > > clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk", > > clkrst2_base, BIT(7), > > CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); > > + PRCC_KCLK_STORE(clk, 2, 7); > > > > /* Periph3 */ > > clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk", > > clkrst3_base, BIT(1), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "ssp0"); > > + PRCC_KCLK_STORE(clk, 3, 1); > > > > clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk", > > clkrst3_base, BIT(2), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "ssp1"); > > + PRCC_KCLK_STORE(clk, 3, 2); > > > > clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk", > > clkrst3_base, BIT(3), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "nmk-i2c.0"); > > + PRCC_KCLK_STORE(clk, 3, 3); > > > > clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk", > > clkrst3_base, BIT(4), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "sdi2"); > > + PRCC_KCLK_STORE(clk, 3, 4); > > > > clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k", > > clkrst3_base, BIT(5), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "ske"); > > clk_register_clkdev(clk, NULL, "nmk-ske-keypad"); > > + PRCC_KCLK_STORE(clk, 3, 5); > > > > clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk", > > clkrst3_base, BIT(6), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "uart2"); > > + PRCC_KCLK_STORE(clk, 3, 6); > > > > clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk", > > clkrst3_base, BIT(7), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "sdi5"); > > + PRCC_KCLK_STORE(clk, 3, 7); > > > > /* Periph6 */ > > clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk", > > clkrst6_base, BIT(0), CLK_SET_RATE_GATE); > > clk_register_clkdev(clk, NULL, "rng"); > > + PRCC_KCLK_STORE(clk, 6, 0); > > > > if (of_have_populated_dt()) > > np = of_find_matching_node(NULL, u8500_clk_of_match); > > @@ -660,5 +687,8 @@ void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, > > } > > if (!of_node_cmp(child->name, "prcc-periph-clock")) > > of_clk_add_provider(child, ux500_twocell_get, prcc_pclk); > > + > > + if (!of_node_cmp(child->name, "prcc-kernel-clock")) > > + of_clk_add_provider(child, ux500_twocell_get, prcc_kclk); > > } > > } > > -- Lee Jones Linaro ST-Ericsson Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/