diff options
| author | Zhangfei Gao <zhangfei.gao@linaro.org> | 2014-01-13 17:14:29 +0800 |
|---|---|---|
| committer | Chris Ball <chris@printf.net> | 2014-01-17 17:59:17 -0500 |
| commit | 0e662440e9658163128b71a925dbf6a30d4db625 (patch) | |
| tree | a456a2ca1f2b57f2be57b394c425a3995e84abdf /drivers | |
| parent | 7cf347bd20ec8169add381ad23f9fb25c6c076f0 (diff) | |
| download | linux-0e662440e9658163128b71a925dbf6a30d4db625.tar.bz2 | |
mmc: dw_mmc: k3: remove clk_table
Remove clk_table and directly use ios->clock as clock source rate.
Abstract init clock rate and max clock limitation in clk.c
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/dw_mmc-k3.c | 41 |
1 files changed, 2 insertions, 39 deletions
diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c index 3542a03e9f99..f567c219cff4 100644 --- a/drivers/mmc/host/dw_mmc-k3.c +++ b/drivers/mmc/host/dw_mmc-k3.c @@ -18,56 +18,19 @@ #include "dw_mmc.h" #include "dw_mmc-pltfm.h" -#define MAX_NUMS 10 -struct dw_mci_k3_priv_data { - u32 clk_table[MAX_NUMS]; -}; - static void dw_mci_k3_set_ios(struct dw_mci *host, struct mmc_ios *ios) { - struct dw_mci_k3_priv_data *priv = host->priv; - u32 rate = priv->clk_table[ios->timing]; int ret; - if (!rate) { - dev_warn(host->dev, - "no specified rate in timing %u\n", ios->timing); - return; - } - - ret = clk_set_rate(host->ciu_clk, rate); + ret = clk_set_rate(host->ciu_clk, ios->clock); if (ret) - dev_warn(host->dev, "failed to set clock rate %uHz\n", rate); + dev_warn(host->dev, "failed to set rate %uHz\n", ios->clock); host->bus_hz = clk_get_rate(host->ciu_clk); } -static int dw_mci_k3_parse_dt(struct dw_mci *host) -{ - struct dw_mci_k3_priv_data *priv; - struct device_node *node = host->dev->of_node; - struct property *prop; - const __be32 *cur; - u32 val, num = 0; - - priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); - if (!priv) { - dev_err(host->dev, "mem alloc failed for private data\n"); - return -ENOMEM; - } - host->priv = priv; - - of_property_for_each_u32(node, "clock-freq-table", prop, cur, val) { - if (num >= MAX_NUMS) - break; - priv->clk_table[num++] = val; - } - return 0; -} - static const struct dw_mci_drv_data k3_drv_data = { .set_ios = dw_mci_k3_set_ios, - .parse_dt = dw_mci_k3_parse_dt, }; static const struct of_device_id dw_mci_k3_match[] = { |