From: Stanislaw Gruszka Date: Mon, 9 Sep 2013 10:37:38 +0000 (+0200) Subject: rt2800: comment enable radio initialization sequence X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=61edc7fad65c80e9f8ddf522339c1d2d91c6328d;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git rt2800: comment enable radio initialization sequence Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 88ce656f96cd..470a7aa11f17 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -6653,17 +6653,20 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev) u16 word; /* - * Initialize all registers. + * Initialize MAC registers. */ if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) || rt2800_init_registers(rt2x00dev))) return -EIO; + /* + * Wait BBP/RF to wake up. + */ if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev))) return -EIO; /* - * Send signal to firmware during boot time. + * Send signal during boot time to initialize firmware. */ rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0); rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0); @@ -6672,9 +6675,15 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev) rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0); msleep(1); + /* + * Make sure BBP is up and running. + */ if (unlikely(rt2800_wait_bbp_ready(rt2x00dev))) return -EIO; + /* + * Initialize BBP/RF registers. + */ rt2800_init_bbp(rt2x00dev); rt2800_init_rfcsr(rt2x00dev);