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dm: board: complete the initialization of the muxes in initr_dm()
This will probe the multiplexer devices that have a "u-boot,mux-autoprobe" property. As a consequence they will be put in their idle state. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
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3 changed files with 47 additions and 0 deletions
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@ -46,6 +46,7 @@
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#include <miiphy.h>
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#endif
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#include <mmc.h>
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#include <mux.h>
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#include <nand.h>
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#include <of_live.h>
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#include <onenand_uboot.h>
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@ -341,6 +342,17 @@ static int initr_dm_devices(void)
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return ret;
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}
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if (IS_ENABLED(CONFIG_MULTIPLEXER)) {
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/*
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* Initialize the multiplexer controls to their default state.
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* This must be done early as other drivers may unknowingly
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* rely on it.
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*/
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ret = dm_mux_init();
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if (ret)
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return ret;
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}
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return 0;
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}
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@ -304,6 +304,29 @@ static int mux_uclass_post_probe(struct udevice *dev)
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return 0;
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}
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int dm_mux_init(void)
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{
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struct uclass *uc;
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struct udevice *dev;
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int ret;
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ret = uclass_get(UCLASS_MUX, &uc);
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if (ret < 0) {
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log_debug("unable to get MUX uclass\n");
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return ret;
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}
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uclass_foreach_dev(dev, uc) {
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if (dev_read_bool(dev, "u-boot,mux-autoprobe")) {
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ret = device_probe(dev);
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if (ret)
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log_debug("unable to probe device %s\n",
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dev->name);
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}
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}
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return 0;
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}
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UCLASS_DRIVER(mux) = {
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.id = UCLASS_MUX,
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.name = "mux",
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@ -109,6 +109,13 @@ void mux_control_put(struct mux_control *mux);
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*/
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struct mux_control *devm_mux_control_get(struct udevice *dev,
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const char *mux_name);
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/**
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* dm_mux_init() - Initialize the multiplexer controls to their default state.
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*
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* Return: 0 if OK, -errno otherwise.
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*/
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int dm_mux_init(void);
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#else
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unsigned int mux_control_states(struct mux_control *mux)
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{
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@ -142,6 +149,11 @@ struct mux_control *devm_mux_control_get(struct udevice *dev,
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{
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return NULL;
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}
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int dm_mux_init(void)
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{
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return -ENOSYS;
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}
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#endif
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#endif
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