diff options
author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-03-04 18:13:57 +0100 |
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committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-07-02 16:01:50 +0200 |
commit | 1a5da0e43be0c07462e445549dbdd4a1731a3e11 (patch) | |
tree | fc7d7275fb098a6195e403d9d9d79785168e0ce7 /drivers/clocksource | |
parent | clocksource: sh_tmu: Replace global spinlock with a per-device spinlock (diff) | |
download | linux-1a5da0e43be0c07462e445549dbdd4a1731a3e11.tar.xz linux-1a5da0e43be0c07462e445549dbdd4a1731a3e11.zip |
clocksource: sh_mtu2: 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: Wolfram Sang <wsa@sang-engineering.com>
Diffstat (limited to 'drivers/clocksource')
-rw-r--r-- | drivers/clocksource/sh_mtu2.c | 130 |
1 files changed, 31 insertions, 99 deletions
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c index 188d4e092efc..0342e4a01c9e 100644 --- a/drivers/clocksource/sh_mtu2.c +++ b/drivers/clocksource/sh_mtu2.c @@ -37,7 +37,6 @@ struct sh_mtu2_channel { unsigned int index; void __iomem *base; - int irq; struct clock_event_device ced; }; @@ -51,7 +50,6 @@ struct sh_mtu2_device { struct sh_mtu2_channel *channels; unsigned int num_channels; - bool legacy; bool has_clockevent; }; @@ -162,12 +160,8 @@ static inline unsigned long sh_mtu2_read(struct sh_mtu2_channel *ch, int reg_nr) { unsigned long offs; - if (reg_nr == TSTR) { - if (ch->mtu->legacy) - return ioread8(ch->mtu->mapbase); - else - return ioread8(ch->mtu->mapbase + 0x280); - } + if (reg_nr == TSTR) + return ioread8(ch->mtu->mapbase + 0x280); offs = mtu2_reg_offs[reg_nr]; @@ -182,12 +176,8 @@ static inline void sh_mtu2_write(struct sh_mtu2_channel *ch, int reg_nr, { unsigned long offs; - if (reg_nr == TSTR) { - if (ch->mtu->legacy) - return iowrite8(value, ch->mtu->mapbase); - else - return iowrite8(value, ch->mtu->mapbase + 0x280); - } + if (reg_nr == TSTR) + return iowrite8(value, ch->mtu->mapbase + 0x280); offs = mtu2_reg_offs[reg_nr]; @@ -331,7 +321,6 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_channel *ch, const char *name) { struct clock_event_device *ced = &ch->ced; - int ret; ced->name = name; ced->features = CLOCK_EVT_FEAT_PERIODIC; @@ -344,24 +333,12 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_channel *ch, dev_info(&ch->mtu->pdev->dev, "ch%u: used for clock events\n", ch->index); clockevents_register_device(ced); - - ret = request_irq(ch->irq, sh_mtu2_interrupt, - IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING, - dev_name(&ch->mtu->pdev->dev), ch); - if (ret) { - dev_err(&ch->mtu->pdev->dev, "ch%u: failed to request irq %d\n", - ch->index, ch->irq); - return; - } } -static int sh_mtu2_register(struct sh_mtu2_channel *ch, const char *name, - bool clockevent) +static int sh_mtu2_register(struct sh_mtu2_channel *ch, const char *name) { - if (clockevent) { - ch->mtu->has_clockevent = true; - sh_mtu2_register_clockevent(ch, name); - } + ch->mtu->has_clockevent = true; + sh_mtu2_register_clockevent(ch, name); return 0; } @@ -372,40 +349,32 @@ static int sh_mtu2_setup_channel(struct sh_mtu2_channel *ch, unsigned int index, static const unsigned int channel_offsets[] = { 0x300, 0x380, 0x000, }; - bool clockevent; + char name[6]; + int irq; + int ret; ch->mtu = mtu; - if (mtu->legacy) { - struct sh_timer_config *cfg = mtu->pdev->dev.platform_data; - - clockevent = cfg->clockevent_rating != 0; - - ch->irq = platform_get_irq(mtu->pdev, 0); - ch->base = mtu->mapbase - cfg->channel_offset; - ch->index = cfg->timer_bit; - } else { - char name[6]; - - clockevent = true; - - sprintf(name, "tgi%ua", index); - ch->irq = platform_get_irq_byname(mtu->pdev, name); - ch->base = mtu->mapbase + channel_offsets[index]; - ch->index = index; - } - - if (ch->irq < 0) { + sprintf(name, "tgi%ua", index); + irq = platform_get_irq_byname(mtu->pdev, name); + if (irq < 0) { /* Skip channels with no declared interrupt. */ - if (!mtu->legacy) - return 0; + return 0; + } - dev_err(&mtu->pdev->dev, "ch%u: failed to get irq\n", - ch->index); - return ch->irq; + ret = request_irq(irq, sh_mtu2_interrupt, + IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING, + dev_name(&ch->mtu->pdev->dev), ch); + if (ret) { + dev_err(&ch->mtu->pdev->dev, "ch%u: failed to request irq %d\n", + index, irq); + return ret; } - return sh_mtu2_register(ch, dev_name(&mtu->pdev->dev), clockevent); + ch->base = mtu->mapbase + channel_offsets[index]; + ch->index = index; + + return sh_mtu2_register(ch, dev_name(&mtu->pdev->dev)); } static int sh_mtu2_map_memory(struct sh_mtu2_device *mtu) @@ -422,46 +391,19 @@ static int sh_mtu2_map_memory(struct sh_mtu2_device *mtu) if (mtu->mapbase == NULL) return -ENXIO; - /* - * In legacy platform device configuration (with one device per channel) - * the resource points to the channel base address. - */ - if (mtu->legacy) { - struct sh_timer_config *cfg = mtu->pdev->dev.platform_data; - mtu->mapbase += cfg->channel_offset; - } - return 0; } -static void sh_mtu2_unmap_memory(struct sh_mtu2_device *mtu) -{ - if (mtu->legacy) { - struct sh_timer_config *cfg = mtu->pdev->dev.platform_data; - mtu->mapbase -= cfg->channel_offset; - } - - iounmap(mtu->mapbase); -} - static int sh_mtu2_setup(struct sh_mtu2_device *mtu, struct platform_device *pdev) { - struct sh_timer_config *cfg = pdev->dev.platform_data; - const struct platform_device_id *id = pdev->id_entry; unsigned int i; int ret; mtu->pdev = pdev; - mtu->legacy = id->driver_data; - - if (mtu->legacy && !cfg) { - dev_err(&mtu->pdev->dev, "missing platform data\n"); - return -ENXIO; - } /* Get hold of clock. */ - mtu->clk = clk_get(&mtu->pdev->dev, mtu->legacy ? "mtu2_fck" : "fck"); + mtu->clk = clk_get(&mtu->pdev->dev, "fck"); if (IS_ERR(mtu->clk)) { dev_err(&mtu->pdev->dev, "cannot get clock\n"); return PTR_ERR(mtu->clk); @@ -479,10 +421,7 @@ static int sh_mtu2_setup(struct sh_mtu2_device *mtu, } /* Allocate and setup the channels. */ - if (mtu->legacy) - mtu->num_channels = 1; - else - mtu->num_channels = 3; + mtu->num_channels = 3; mtu->channels = kzalloc(sizeof(*mtu->channels) * mtu->num_channels, GFP_KERNEL); @@ -491,16 +430,10 @@ static int sh_mtu2_setup(struct sh_mtu2_device *mtu, goto err_unmap; } - if (mtu->legacy) { - ret = sh_mtu2_setup_channel(&mtu->channels[0], 0, mtu); + for (i = 0; i < mtu->num_channels; ++i) { + ret = sh_mtu2_setup_channel(&mtu->channels[i], i, mtu); if (ret < 0) goto err_unmap; - } else { - for (i = 0; i < mtu->num_channels; ++i) { - ret = sh_mtu2_setup_channel(&mtu->channels[i], i, mtu); - if (ret < 0) - goto err_unmap; - } } platform_set_drvdata(pdev, mtu); @@ -509,7 +442,7 @@ static int sh_mtu2_setup(struct sh_mtu2_device *mtu, err_unmap: kfree(mtu->channels); - sh_mtu2_unmap_memory(mtu); + iounmap(mtu->mapbase); err_clk_unprepare: clk_unprepare(mtu->clk); err_clk_put: @@ -560,7 +493,6 @@ static int sh_mtu2_remove(struct platform_device *pdev) } static const struct platform_device_id sh_mtu2_id_table[] = { - { "sh_mtu2", 1 }, { "sh-mtu2", 0 }, { }, }; |