diff options
author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-01-28 15:52:46 +0100 |
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committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-07-02 16:01:49 +0200 |
commit | 681b9e852cf2d48ebd63954028814c7cece71945 (patch) | |
tree | 3438cc1a4996d23f3fdf7de94483fb27f7098855 /drivers/clocksource/sh_tmu.c | |
parent | clocksource: sh_cmt: Replace global spinlock with a per-device spinlock (diff) | |
download | linux-681b9e852cf2d48ebd63954028814c7cece71945.tar.xz linux-681b9e852cf2d48ebd63954028814c7cece71945.zip |
clocksource: sh_tmu: Drop support for legacy platform data
Now that all platforms have switched to the new-style platform data,
drop support for the legacy version.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'drivers/clocksource/sh_tmu.c')
-rw-r--r-- | drivers/clocksource/sh_tmu.c | 82 |
1 files changed, 15 insertions, 67 deletions
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c index 6bd17a8f3dd4..3eee5c8c26aa 100644 --- a/drivers/clocksource/sh_tmu.c +++ b/drivers/clocksource/sh_tmu.c @@ -32,7 +32,6 @@ #include <linux/spinlock.h> enum sh_tmu_model { - SH_TMU_LEGACY, SH_TMU, SH_TMU_SH3, }; @@ -91,8 +90,6 @@ static inline unsigned long sh_tmu_read(struct sh_tmu_channel *ch, int reg_nr) if (reg_nr == TSTR) { switch (ch->tmu->model) { - case SH_TMU_LEGACY: - return ioread8(ch->tmu->mapbase); case SH_TMU_SH3: return ioread8(ch->tmu->mapbase + 2); case SH_TMU: @@ -115,8 +112,6 @@ static inline void sh_tmu_write(struct sh_tmu_channel *ch, int reg_nr, if (reg_nr == TSTR) { switch (ch->tmu->model) { - case SH_TMU_LEGACY: - return iowrite8(value, ch->tmu->mapbase); case SH_TMU_SH3: return iowrite8(value, ch->tmu->mapbase + 2); case SH_TMU: @@ -476,27 +471,12 @@ static int sh_tmu_channel_setup(struct sh_tmu_channel *ch, unsigned int index, return 0; ch->tmu = tmu; + ch->index = index; - if (tmu->model == SH_TMU_LEGACY) { - struct sh_timer_config *cfg = tmu->pdev->dev.platform_data; - - /* - * The SH3 variant (SH770x, SH7705, SH7710 and SH7720) maps - * channel registers blocks at base + 2 + 12 * index, while all - * other variants map them at base + 4 + 12 * index. We can - * compute the index by just dividing by 12, the 2 bytes or 4 - * bytes offset being hidden by the integer division. - */ - ch->index = cfg->channel_offset / 12; - ch->base = tmu->mapbase + cfg->channel_offset; - } else { - ch->index = index; - - if (tmu->model == SH_TMU_SH3) - ch->base = tmu->mapbase + 4 + ch->index * 12; - else - ch->base = tmu->mapbase + 8 + ch->index * 12; - } + if (tmu->model == SH_TMU_SH3) + ch->base = tmu->mapbase + 4 + ch->index * 12; + else + ch->base = tmu->mapbase + 8 + ch->index * 12; ch->irq = platform_get_irq(tmu->pdev, index); if (ch->irq < 0) { @@ -526,28 +506,9 @@ static int sh_tmu_map_memory(struct sh_tmu_device *tmu) if (tmu->mapbase == NULL) return -ENXIO; - /* - * In legacy platform device configuration (with one device per channel) - * the resource points to the channel base address. - */ - if (tmu->model == SH_TMU_LEGACY) { - struct sh_timer_config *cfg = tmu->pdev->dev.platform_data; - tmu->mapbase -= cfg->channel_offset; - } - return 0; } -static void sh_tmu_unmap_memory(struct sh_tmu_device *tmu) -{ - if (tmu->model == SH_TMU_LEGACY) { - struct sh_timer_config *cfg = tmu->pdev->dev.platform_data; - tmu->mapbase += cfg->channel_offset; - } - - iounmap(tmu->mapbase); -} - static int sh_tmu_setup(struct sh_tmu_device *tmu, struct platform_device *pdev) { struct sh_timer_config *cfg = pdev->dev.platform_data; @@ -564,8 +525,7 @@ static int sh_tmu_setup(struct sh_tmu_device *tmu, struct platform_device *pdev) tmu->model = id->driver_data; /* Get hold of clock. */ - tmu->clk = clk_get(&tmu->pdev->dev, - tmu->model == SH_TMU_LEGACY ? "tmu_fck" : "fck"); + tmu->clk = clk_get(&tmu->pdev->dev, "fck"); if (IS_ERR(tmu->clk)) { dev_err(&tmu->pdev->dev, "cannot get clock\n"); return PTR_ERR(tmu->clk); @@ -583,10 +543,7 @@ static int sh_tmu_setup(struct sh_tmu_device *tmu, struct platform_device *pdev) } /* Allocate and setup the channels. */ - if (tmu->model == SH_TMU_LEGACY) - tmu->num_channels = 1; - else - tmu->num_channels = hweight8(cfg->channels_mask); + tmu->num_channels = hweight8(cfg->channels_mask); tmu->channels = kzalloc(sizeof(*tmu->channels) * tmu->num_channels, GFP_KERNEL); @@ -595,23 +552,15 @@ static int sh_tmu_setup(struct sh_tmu_device *tmu, struct platform_device *pdev) goto err_unmap; } - if (tmu->model == SH_TMU_LEGACY) { - ret = sh_tmu_channel_setup(&tmu->channels[0], 0, - cfg->clockevent_rating != 0, - cfg->clocksource_rating != 0, tmu); + /* + * Use the first channel as a clock event device and the second channel + * as a clock source. + */ + for (i = 0; i < tmu->num_channels; ++i) { + ret = sh_tmu_channel_setup(&tmu->channels[i], i, + i == 0, i == 1, tmu); if (ret < 0) goto err_unmap; - } else { - /* - * Use the first channel as a clock event device and the second - * channel as a clock source. - */ - for (i = 0; i < tmu->num_channels; ++i) { - ret = sh_tmu_channel_setup(&tmu->channels[i], i, - i == 0, i == 1, tmu); - if (ret < 0) - goto err_unmap; - } } platform_set_drvdata(pdev, tmu); @@ -620,7 +569,7 @@ static int sh_tmu_setup(struct sh_tmu_device *tmu, struct platform_device *pdev) err_unmap: kfree(tmu->channels); - sh_tmu_unmap_memory(tmu); + iounmap(tmu->mapbase); err_clk_unprepare: clk_unprepare(tmu->clk); err_clk_put: @@ -671,7 +620,6 @@ static int sh_tmu_remove(struct platform_device *pdev) } static const struct platform_device_id sh_tmu_id_table[] = { - { "sh_tmu", SH_TMU_LEGACY }, { "sh-tmu", SH_TMU }, { "sh-tmu-sh3", SH_TMU_SH3 }, { } |