+Stefan
On 13 July 2018 at 15:17, Aapo Vienamo <avienamo@xxxxxxxxxx> wrote:
> Implement and use tegra_sdhci_get_max_clock() which returns the true
> maximum host clock rate. The issue with tegra_sdhci_get_max_clock() is
> that it returns the current clock rate of the host instead of the
> maximum one, which can lead to unnecessarily small clock rates.
>
> This differs from the previous implementation of
> tegra_sdhci_get_max_clock() in that it doesn't divide the result by two.
>
> Signed-off-by: Aapo Vienamo <avienamo@xxxxxxxxxx>
Thanks, applied for next!
I realize there are some discussions and tests going on in regards to
the changes for tegra driver. However, I decided to apply all pending
patches from Stefan and you, to get them tested in next for a while to
see how it plays.
Please tell if you want me to drop some changes - or if you prefer to
send patches on top to fix further related issues.
Kind regards
Uffe
> ---
> drivers/mmc/host/sdhci-tegra.c | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
> index 28b98e2..ddf00166 100644
> --- a/drivers/mmc/host/sdhci-tegra.c
> +++ b/drivers/mmc/host/sdhci-tegra.c
> @@ -235,6 +235,13 @@ static void tegra_sdhci_set_uhs_signaling(struct sdhci_host *host,
> sdhci_set_uhs_signaling(host, timing);
> }
>
> +static unsigned int tegra_sdhci_get_max_clock(struct sdhci_host *host)
> +{
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> +
> + return clk_round_rate(pltfm_host->clk, UINT_MAX);
> +}
> +
> static void tegra_sdhci_set_tap(struct sdhci_host *host, unsigned int tap)
> {
> u32 reg;
> @@ -299,7 +306,7 @@ static const struct sdhci_ops tegra_sdhci_ops = {
> .platform_execute_tuning = tegra_sdhci_execute_tuning,
> .set_uhs_signaling = tegra_sdhci_set_uhs_signaling,
> .voltage_switch = tegra_sdhci_voltage_switch,
> - .get_max_clock = sdhci_pltfm_clk_get_max_clock,
> + .get_max_clock = tegra_sdhci_get_max_clock,
> };
>
> static const struct sdhci_pltfm_data sdhci_tegra20_pdata = {
> @@ -356,7 +363,7 @@ static const struct sdhci_ops tegra114_sdhci_ops = {
> .platform_execute_tuning = tegra_sdhci_execute_tuning,
> .set_uhs_signaling = tegra_sdhci_set_uhs_signaling,
> .voltage_switch = tegra_sdhci_voltage_switch,
> - .get_max_clock = sdhci_pltfm_clk_get_max_clock,
> + .get_max_clock = tegra_sdhci_get_max_clock,
> };
>
> static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
> --
> 2.7.4
>
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