mmc: omap_hsmmc.c: only register getcd/getwp callbacks if gpio could be used

Gets rid of warnings from omap_gpio:
ERROR : check_gpio: invalid GPIO -1

(and undefined behaviour as the -1 error code is interpreted as gpio value)

Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>

diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index 67cfcc24dc0bd946aae074e2852477e93ecfd13c..166744c3204ff4a8d1701fc37cae80f08f2f39f3 100644 (file)
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -593,8 +593,6 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
        mmc->send_cmd = mmc_send_cmd;
        mmc->set_ios = mmc_set_ios;
        mmc->init = mmc_init_setup;
-       mmc->getcd = omap_mmc_getcd;
-       mmc->getwp = omap_mmc_getwp;
        mmc->priv = priv_data;
 
        switch (dev_index) {
@@ -616,7 +614,13 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
                return 1;
        }
        priv_data->cd_gpio = omap_mmc_setup_gpio_in(cd_gpio, "mmc_cd");
+       if (priv_data->cd_gpio != -1)
+               mmc->getcd = omap_mmc_getcd;
+
        priv_data->wp_gpio = omap_mmc_setup_gpio_in(wp_gpio, "mmc_wp");
+       if (priv_data->wp_gpio != -1)
+               mmc->getwp = omap_mmc_getwp;
+
        mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
        mmc->host_caps = (MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS |
                                MMC_MODE_HC) & ~host_caps_mask;