The remoteproc SSR callback function for the modem requires hardware
access when handling a modem crash or shutdown. Take and later
release an IPA clock reference in ipa_modem_crashed(), to ensure the
hardware is operational.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
#include "ipa_smp2p.h"
#include "ipa_qmi.h"
#include "ipa_uc.h"
+#include "ipa_clock.h"
#define IPA_NETDEV_NAME "rmnet_ipa%d"
#define IPA_NETDEV_TAILROOM 0 /* for padding by mux layer */
struct device *dev = &ipa->pdev->dev;
int ret;
+ ipa_clock_get(ipa);
+
ipa_endpoint_modem_pause_all(ipa, true);
ipa_endpoint_modem_hol_block_clear_all(ipa);
ret = ipa_mem_zero_modem(ipa);
if (ret)
dev_err(dev, "error %d zeroing modem memory regions\n", ret);
+
+ ipa_clock_put(ipa);
}
static int ipa_modem_notify(struct notifier_block *nb, unsigned long action,