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Date: Tue, 22 Apr 2014 20:27:09 -0500 From: Joel Fernandes <joelf@...com> To: Tony Lindgren <tony@...mide.com>, Rob Herring <rob.herring@...xeda.com>, Linux OMAP List <linux-omap@...r.kernel.org>, Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> CC: Joel Fernandes <joelf@...com> Subject: [PATCH 8/8] ARM: OMAP2+: timer: Add legacy code for old way of getting fclk Separate out legacy code for getting timer->fclk and reuse it for the DT-case as a fallback. All DT users should ideally be specifying a clock property with a phandle of its clock node. Till the migration is complete, add a legacy function to keep things working. Signed-off-by: Joel Fernandes <joelf@...com> --- arch/arm/mach-omap2/timer.c | 32 ++++++++++++++++++++++++-------- 1 file changed, 24 insertions(+), 8 deletions(-) diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index b3db1da..81a29b1 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -248,6 +248,19 @@ static u32 __init omap_dm_timer_get_errata(void) return OMAP_TIMER_ERRATA_I103_I767; } +static int legacy_hwmod_clkget(struct omap_dm_timer *timer, const char *oh_name) +{ + struct omap_hwmod *oh; + + oh = omap_hwmod_lookup(oh_name); + if (!oh) + return -ENODEV; + + timer->fclk = clk_get(NULL, omap_hwmod_get_main_clk(oh)); + if (IS_ERR(timer->fclk)) + return PTR_ERR(timer->fclk); +} + static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer, const char *fck_source, const char *property, @@ -289,6 +302,14 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer, * fall back code is to be deleted and we're to return * PTR_ERR(timer->fclk) here. */ + of_property_read_string_index(np, "ti,hwmods", 0, + &oh_name); + if (!oh_name) + return -ENODEV; + + r = legacy_hwmod_clkget(timer, oh_name); + if (r) + return r; } } else { if (omap_dm_timer_reserve_systimer(timer->id)) @@ -320,15 +341,10 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer, omap_hwmod_setup_one(oh_name); omap_hwmod_enable(oh); - } - if (!timer->fclk || IS_ERR(timer->fclk)) { - oh = omap_hwmod_lookup(oh_name); - if (!oh) - return -ENODEV; - timer->fclk = clk_get(NULL, omap_hwmod_get_main_clk(oh)); - if (IS_ERR(timer->fclk)) - return PTR_ERR(timer->fclk); + r = legacy_hwmod_clkget(timer, oh_name); + if (r) + return r; } /* -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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