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mmc: tmio: support aggressive clock gating
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Chris Ball <cjb@laptop.org>
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a7edbe399b
commit
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1 changed files with 8 additions and 9 deletions
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@ -747,19 +747,18 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
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tmio_mmc_set_clock(host, ios->clock);
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tmio_mmc_set_clock(host, ios->clock);
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/* Power sequence - OFF -> UP -> ON */
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/* Power sequence - OFF -> UP -> ON */
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switch (ios->power_mode) {
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if (ios->power_mode == MMC_POWER_OFF || !ios->clock) {
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case MMC_POWER_OFF: /* power down SD bus */
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/* power down SD bus */
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if (host->set_pwr)
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if (ios->power_mode == MMC_POWER_OFF && host->set_pwr)
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host->set_pwr(host->pdev, 0);
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host->set_pwr(host->pdev, 0);
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tmio_mmc_clk_stop(host);
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tmio_mmc_clk_stop(host);
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break;
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} else if (ios->power_mode == MMC_POWER_UP) {
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case MMC_POWER_ON: /* start bus clock */
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/* power up SD bus */
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tmio_mmc_clk_start(host);
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break;
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case MMC_POWER_UP: /* power up SD bus */
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if (host->set_pwr)
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if (host->set_pwr)
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host->set_pwr(host->pdev, 1);
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host->set_pwr(host->pdev, 1);
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break;
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} else {
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/* start bus clock */
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tmio_mmc_clk_start(host);
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}
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}
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switch (ios->bus_width) {
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switch (ios->bus_width) {
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