Eric Lee / smarc-ti-linux-kernel

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Commit 1227fc1559e039c92bb3264897549e53e8d9fe5a

Authored by Dave Gerlach
Committed by Tero Kristo
1 parent 578efa367e
Exists in ti-linux-3.14.y and in 2 other branches processor-sdk-linux-01.00.00, smarc-ti-linux-3.14.y

remoteproc: wkup_m3_rproc: Modify wkup_m3_ping to not use interrupts 

The wkup_m3 needs the ability to receive messages in noirq context
during cpuidle transition. Change wkup_m3_ping to not use any mailbox
interrupts during ping now that the mailbox driver can handle sending
the message in noirq context.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>

Showing 1 changed file with 2 additions and 7 deletions Side-by-side Diff

drivers/remoteproc/wkup_m3_rproc.c
Diff comments   View file @ 1227fc1
... ... @@ -150,11 +150,6 @@
150 150 wkup_m3_ctrl_ipc_write(m3_rproc_static, val, 2);
151 151 }
152 152  
153   -static void wkup_m3_mbox_callback(struct mbox_client *client, void *data)
154   -{
155   - omap_mbox_disable_irq(m3_rproc_static->mbox, IRQ_RX);
156   -}
157   -
158 153 void wkup_m3_set_rtc_only_mode(void)
159 154 {
160 155 m3_rproc_static->is_rtc_only = true;
... ... @@ -179,7 +174,7 @@
179 174  
180 175 m3_rproc->mbox_client.dev = dev;
181 176 m3_rproc->mbox_client.tx_done = NULL;
182   - m3_rproc->mbox_client.rx_callback = wkup_m3_mbox_callback;
  177 + m3_rproc->mbox_client.rx_callback = NULL;
183 178 m3_rproc->mbox_client.tx_block = false;
184 179 m3_rproc->mbox_client.knows_txdone = false;
185 180  
186 181  
... ... @@ -283,13 +278,13 @@
283 278 * the RX callback to avoid multiple interrupts being received
284 279 * by the CM3.
285 280 */
286   - omap_mbox_enable_irq(m3_rproc_static->mbox, IRQ_RX);
287 281 ret = mbox_send_message(m3_rproc_static->mbox, (void *)dummy_msg);
288 282 if (ret < 0) {
289 283 pr_err("%s: mbox_send_message() failed: %d\n", __func__, ret);
290 284 return ret;
291 285 }
292 286  
  287 + mbox_client_txdone(m3_rproc_static->mbox, 0);
293 288 return 0;
294 289 }
295 290