From be9f10c04fb13d32fc30d599c1971a10916a2209 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Thu, 21 Feb 2013 15:20:53 -0600 Subject: [PATCH] ARM: OMAP2+: Simplify code configuring ONENAND devices The OMAP2+ code that configures the GPMC for ONENAND devices is copying structures between functions unnecessarily. Avoid this by passing pointers instead and simplify the code. A pointer to structure "omap_onenand_platform_data" is passed to the function omap2_onenand_calc_sync_timings(), but only the flags member of the structure is used. Simplify the code by only passing the flags member and not the entire structure. Signed-off-by: Jon Hunter Tested-by: Ezequiel Garcia --- arch/arm/mach-omap2/gpmc-onenand.c | 26 ++++++++++---------------- 1 file changed, 10 insertions(+), 16 deletions(-) diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c index 4c917522d248..db52c4b28f8b 100644 --- a/arch/arm/mach-omap2/gpmc-onenand.c +++ b/arch/arm/mach-omap2/gpmc-onenand.c @@ -47,10 +47,9 @@ static struct platform_device gpmc_onenand_device = { .resource = &gpmc_onenand_resource, }; -static struct gpmc_timings omap2_onenand_calc_async_timings(void) +static void omap2_onenand_calc_async_timings(struct gpmc_timings *t) { struct gpmc_device_timings dev_t; - struct gpmc_timings t; const int t_cer = 15; const int t_avdp = 12; @@ -76,9 +75,7 @@ static struct gpmc_timings omap2_onenand_calc_async_timings(void) dev_t.t_wpl = t_wpl * 1000; dev_t.t_wph = t_wph * 1000; - gpmc_calc_timings(&t, &dev_t); - - return t; + gpmc_calc_timings(t, &dev_t); } static int gpmc_set_async_mode(int cs, struct gpmc_timings *t) @@ -158,12 +155,11 @@ static int omap2_onenand_get_freq(struct omap_onenand_platform_data *cfg, return freq; } -static struct gpmc_timings -omap2_onenand_calc_sync_timings(struct omap_onenand_platform_data *cfg, - int freq) +static void omap2_onenand_calc_sync_timings(struct gpmc_timings *t, + unsigned int flags, + int freq) { struct gpmc_device_timings dev_t; - struct gpmc_timings t; const int t_cer = 15; const int t_avdp = 12; const int t_cez = 20; /* max of t_cez, t_oez */ @@ -172,9 +168,9 @@ omap2_onenand_calc_sync_timings(struct omap_onenand_platform_data *cfg, int min_gpmc_clk_period, t_ces, t_avds, t_avdh, t_ach, t_aavdh, t_rdyo; int div, gpmc_clk_ns; - if (cfg->flags & ONENAND_SYNC_READ) + if (flags & ONENAND_SYNC_READ) onenand_flags = ONENAND_FLAG_SYNCREAD; - else if (cfg->flags & ONENAND_SYNC_READWRITE) + else if (flags & ONENAND_SYNC_READWRITE) onenand_flags = ONENAND_FLAG_SYNCREAD | ONENAND_FLAG_SYNCWRITE; switch (freq) { @@ -265,9 +261,7 @@ omap2_onenand_calc_sync_timings(struct omap_onenand_platform_data *cfg, dev_t.cyc_aavdh_oe = 1; dev_t.t_rdyo = t_rdyo * 1000 + min_gpmc_clk_period; - gpmc_calc_timings(&t, &dev_t); - - return t; + gpmc_calc_timings(t, &dev_t); } static int gpmc_set_sync_mode(int cs, struct gpmc_timings *t) @@ -300,7 +294,7 @@ static int omap2_onenand_setup_async(void __iomem *onenand_base) omap2_onenand_set_async_mode(onenand_base); - t = omap2_onenand_calc_async_timings(); + omap2_onenand_calc_async_timings(&t); ret = gpmc_set_async_mode(gpmc_onenand_data->cs, &t); if (ret < 0) @@ -322,7 +316,7 @@ static int omap2_onenand_setup_sync(void __iomem *onenand_base, int *freq_ptr) set_onenand_cfg(onenand_base); } - t = omap2_onenand_calc_sync_timings(gpmc_onenand_data, freq); + omap2_onenand_calc_sync_timings(&t, gpmc_onenand_data->flags, freq); ret = gpmc_set_sync_mode(gpmc_onenand_data->cs, &t); if (ret < 0) -- 2.20.1