From mboxrd@z Thu Jan 1 00:00:00 1970 From: tglx@linutronix.de (Thomas Gleixner) Date: Tue, 12 May 2015 17:55:24 +0200 (CEST) Subject: [PATCH v2 02/12] clocksource: sti: Provide support for the ST LPC Clocksource IP In-Reply-To: <1431435500-22899-3-git-send-email-lee.jones@linaro.org> References: <1431435500-22899-1-git-send-email-lee.jones@linaro.org> <1431435500-22899-3-git-send-email-lee.jones@linaro.org> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, 12 May 2015, Lee Jones wrote: > +static void st_clksrc_reset(void) __init > +static int st_clksrc_setup_clk(struct device_node *np) __init > +static void __init st_clksrc_of_register(struct device_node *np) > +{ > + int ret; > + uint32_t mode; > + > + ret = of_property_read_u32(np, "st,lpc-mode", &mode); > + if (ret) { > + pr_err("clksrc-st-lpc: An LPC mode must be provided\n"); > + return; > + } > + > + /* LPC can either run as a Clocksource or in RTC or WDT mode */ > + if (mode != ST_LPC_MODE_CLKSRC) > + return; > + > + ddata.base = of_iomap(np, 0); > + if (!ddata.base) { > + pr_err("clksrc-st-lpc: Unable to map iomem\n"); > + return; > + } > + > + if (st_clksrc_setup_clk(np)) { > + iounmap(ddata.base); > + return; > + } > + > + if (st_clksrc_init()) { Keeps the clock enabled. > + iounmap(ddata.base); > + return; Thanks, tglx