mirror of https://gitee.com/openkylin/linux.git
soc/tegra: pmc: Factor out DPD register bit calculation
Factor out the the code to calculate the correct DPD register and bit number for a given pad. This logic will be needed to query the status register. Signed-off-by: Aapo Vienamo <avienamo@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
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@ -922,11 +922,12 @@ tegra_io_pad_find(struct tegra_pmc *pmc, enum tegra_io_pad id)
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return NULL;
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return NULL;
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}
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}
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static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request,
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static int tegra_io_pad_get_dpd_register_bit(enum tegra_io_pad id,
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unsigned long *status, u32 *mask)
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unsigned long *request,
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unsigned long *status,
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u32 *mask)
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{
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{
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const struct tegra_io_pad_soc *pad;
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const struct tegra_io_pad_soc *pad;
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unsigned long rate, value;
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pad = tegra_io_pad_find(pmc, id);
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pad = tegra_io_pad_find(pmc, id);
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if (!pad) {
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if (!pad) {
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@ -947,6 +948,19 @@ static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request,
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*request = pmc->soc->regs->dpd2_req;
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*request = pmc->soc->regs->dpd2_req;
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}
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}
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return 0;
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}
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static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request,
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unsigned long *status, u32 *mask)
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{
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unsigned long rate, value;
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int err;
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err = tegra_io_pad_get_dpd_register_bit(id, request, status, mask);
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if (err)
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return err;
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if (pmc->clk) {
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if (pmc->clk) {
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rate = clk_get_rate(pmc->clk);
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rate = clk_get_rate(pmc->clk);
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if (!rate) {
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if (!rate) {
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