MIPS: lantiq: remove old reset controller implementation

This code is now replaced by a reset controller in drivers/reset/reset-
lantiq-rcu.c. The old code was never used anyway.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: martin.blumenstingl@googlemail.com
Cc: john@phrozen.org
Cc: robh@kernel.org
Cc: andy.shevchenko@gmail.com
Cc: p.zabel@pengutronix.de
Cc: kishon@ti.com
Cc: mark.rutland@arm.com
Cc: linux-mips@linux-mips.org
Cc: linux-mtd@lists.infradead.org
Cc: linux-watchdog@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-spi@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17124/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/lantiq/xway/reset.c

@@ -194,74 +194,6 @@ int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr)
 	return 0;
 }
 
-/* reset a io domain for u micro seconds */
-void ltq_reset_once(unsigned int module, ulong u)
-{
-	ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) | module, RCU_RST_REQ);
-	udelay(u);
-	ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) & ~module, RCU_RST_REQ);
-}
-
-static int ltq_assert_device(struct reset_controller_dev *rcdev,
-				unsigned long id)
-{
-	u32 val;
-
-	if (id < 8)
-		return -1;
-
-	val = ltq_rcu_r32(RCU_RST_REQ);
-	val |= BIT(id);
-	ltq_rcu_w32(val, RCU_RST_REQ);
-
-	return 0;
-}
-
-static int ltq_deassert_device(struct reset_controller_dev *rcdev,
-				  unsigned long id)
-{
-	u32 val;
-
-	if (id < 8)
-		return -1;
-
-	val = ltq_rcu_r32(RCU_RST_REQ);
-	val &= ~BIT(id);
-	ltq_rcu_w32(val, RCU_RST_REQ);
-
-	return 0;
-}
-
-static int ltq_reset_device(struct reset_controller_dev *rcdev,
-			       unsigned long id)
-{
-	ltq_assert_device(rcdev, id);
-	return ltq_deassert_device(rcdev, id);
-}
-
-static const struct reset_control_ops reset_ops = {
-	.reset = ltq_reset_device,
-	.assert = ltq_assert_device,
-	.deassert = ltq_deassert_device,
-};
-
-static struct reset_controller_dev reset_dev = {
-	.ops			= &reset_ops,
-	.owner			= THIS_MODULE,
-	.nr_resets		= 32,
-	.of_reset_n_cells	= 1,
-};
-
-void ltq_rst_init(void)
-{
-	reset_dev.of_node = of_find_compatible_node(NULL, NULL,
-						"lantiq,xway-reset");
-	if (!reset_dev.of_node)
-		pr_err("Failed to find reset controller node");
-	else
-		reset_controller_register(&reset_dev);
-}
-
 static void ltq_machine_restart(char *command)
 {
 	u32 val = ltq_rcu_r32(RCU_RST_REQ);